1,000,000,000

1,000,000,000 is the natural number after 999,999,999 and before 1,000,000,001. In the short scale, it is called one billion, but in the long scale, it is called one thousand million or one milliard (or yard).^[1] One billion is sometimes written as B or bn.^[2][3]

1000000000
List of numbers — Integers ← 100 101 102 103 104 105 106 107 108 109
Cardinal	One billion (short scale) One thousand million, or one milliard (long scale)
Ordinal	One billionth (short scale)
Factorization	29 · 59
Greek numeral	${\displaystyle {\stackrel {\iota }{\mathrm {M} }}}$
Roman numeral	M
Binary	1110111001101011001010000000002
Ternary	21202002000210100013
Quaternary	3232122302200004
Quinary	40220000000005
Senary	2431212453446
Octal	73465450008
Duodecimal	23AA9385412
Hexadecimal	3B9ACA0016
Vigesimal	FCA000020
Base 36	GJDGXS36