270 (number)

270 (number)

270 is the natural number following 269 and preceding 271.

It may also refer to:

In mathematics:
*270 is a harmonic divisor number
*270 is the fourth number that is divisible by its average integer divisor OEIS|id=A007340
*270 is a practical number, by the second definition
*The sum of the coprime counts for the first 29 integers is 270
*270 is a sparsely totient number, the largest integer with 72 as its totient
*Given 6 elements, there are 270 square permutations OEIS2C|id=A003483
*10! has 270 divisors
*270 is a Harshad number in base 10

In other fields:
*The year 270 BC
*The year 270 AD
*The caliber of the .270 Winchester rifle
*The number of U.S. Electoral College votes needed to be President of the United States
*The average amount of days in human pregnancy
*A pseudonym for Konami musician Naoki Maeda

In other numbers:
*Two hundred [and] seventy-one (271), prime, twin prime with 269, cuban prime, centered hexagonal number
*Two hundred [and] seventy-two (272), = 24·17, sum of four consecutive primes (61 + 67 + 71 + 73), Euler number, primitive semiperfect number, pronic number
*Two hundred [and] seventy-four (274), = 2·137, tribonacci number, Smith number, nontotient, noncototient, centered triangular number
*Two hundred [and] seventy-five (275), = 52·11
*Two hundred [and] seventy-six (276), = 22·3·23, triangular number, hexagonal number, centered pentagonal number, untouchable number, the lowest number whose aliquot sequence has not been fully determined (as of 2006)
*Two hundred [and] seventy-seven (277), Perrin number, self number
*Two hundred [and] seventy-eight (278), = 2·139, nontotient
*Two hundred [and] seventy-nine (279) = 32·31 Every positive integer is the sum of at most 279 eighth powers. See Waring's problem

ee also

*273 (number)


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Number Ones: Up Close and Personal — World Tour Official poster for the tour Tour by Janet Jackson Associated album Number Ones …   Wikipedia

  • .270 Winchester — Infobox Firearm Cartridge name= .270 Winchester caption= Left to Right convert|100|gr|g|sing=on Hollow Point, convert|115|gr|g|sing=on FMJBT, convert|130|gr|g|sing=on Soft point, convert|150|gr|g|sing=on round nose. origin=flagcountry|United… …   Wikipedia

  • Number needed to harm — The number needed to harm (NNH) is an epidemiological measure that indicates how many patients need to be exposed to a risk factor over a specific period to cause harm in one patient that would not otherwise have been harmed.[1] It is defined as… …   Wikipedia

  • Number 13 class battleship — design Class overview Operators: Impe …   Wikipedia

  • .270 Winchester Short Magnum — Infobox Firearm Cartridge name= .270 Winchester Short Magnum caption= origin= USA type= Rifle designer= Winchester design date=2002 manufacturer= production date= number= variants= is SI specs= parent=.300 WSM case type=Rimless, bottleneck bullet …   Wikipedia

  • .270 Weatherby Magnum — Infobox Firearm Cartridge name= .270 Weatherby Magnum caption= .270 Weatherby 2nd from left origin= USA type= Rifle / Hunting service= used by= wars= designer= Roy Weatherby design date=1943 manufacturer=Weatherby production date= number=… …   Wikipedia

  • Wikipedia:List of Wikipedians by number of edits — Shortcuts: WP:NOE WP:WBE WP:EDITS WP:MOSTEDITS This is a list of Wikipedians ordered by number of edits in the English language Wikipedia. Edits in all namespaces are counted; deleted edits have been included in recent versions. Click… …   Wikipedia

  • Area code 270 — presently serves the U.S. state of Kentucky s western counties. Area code 270 was split off of area code 502 in April 1999.In September and October 2006, state officials announced that the area code would run out of numbers in late 2007.… …   Wikipedia

  • Bundesautobahn 270 — Vorlage:Infobox hochrangige Straße/Wartung/DE A Bundesautobahn 270 in Deutschland Basi …   Deutsch Wikipedia

  • Caudron C.270 — NOTOC Infobox Aircraft name=C.270 Luciole caption= type=Sports plane manufacturer=Caudron designer=Paul Deville first flight=1931 introduced= retired= status= primary user= more users= produced= number built=>700 variants with their own… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”