1,000,000,000
With a number, "billion" can be abbreviated as b, bil[2] or bn.The metric prefix giga indicates 1,000,000,000 times the base unit.Its symbol is G. One billion years may be called an eon in astronomy or geology.However, this is not common anymore, and the word has been used to mean one thousand million (1,000,000,000) for several decades.In the Indian numbering system, it is known as 100 crore or 1 arab.
Orders of magnitude (numbers)Long and short scalesList of numbersIntegersCardinalshort scalelong scaleOrdinalFactorizationGreek numeralRoman numeralBinaryTernarySenaryDuodecimalHexadecimalbillionnatural numbermetric prefixBritish Englishmillion millionsIndian numbering systemRoman EmpireStone AgeMiddle PaleolithicAustralopithecussavannasdinosaursCretaceousgigaannusmulticellulareukaryotesthin diskMilky Wayuniverse13.8 × 109 years old.metresgigametrekilometresterametre1000-TCmillimetrescubic metrecubic kilometreBoeing 747-400siPhonesPlayStationRubik's CubeFacebookStone Mountainworld populationprime numbertriangular numberpandigital numbersquareLeyland numberpartially ordered setrepunitUnix timeMotzkin numberFibonacci numberCentered hexagonal numberPell numberBell numberWedderburn–Etherington numberPeople's Republic of Chinasquare triangular numberautomorphic numberright-truncatable prime40,014 modulo 2,147,483,563combined linear congruential generator2,147,483,647Mersenne primedouble Mersenne primeprimary pseudoperfect numberrepdigitMills' primeCAFEBABECAFED00DProth primeDEADBEEFDEADC0DE4,294,967,295perfect totient numberFermat primesFermat numberabundant numberalternating factorialself-descriptive numberprimorialCatalan numbercolossally abundant numbersuperior highly composite numberperfect numberpandigital squareInvestopediaThe EconomistEuropean CommissionOxfordDictionaries.comGoogle Ngram ViewerEuropean Space AgencyNBCNews.comThe Wall Street JournalAtlas ObscuraSloane, N. J. A.On-Line Encyclopedia of Integer SequencesUnited Nations Department of Economic and Social AffairsWolfram AlphaLarge numbersHundredThousandTen thousandHundred thousandMillionTrillionEddington numberGoogolShannon numberGoogolplexSkewes's numberMoser's numberGraham's numberTREE(3)SSCG(3)Rayo's numberInfinity