# 1,000,000,000

natural number with the value 10⁹, named one billion or one milliard

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 can also be written as b or bn.[2][3]

1000000000
CardinalOne billion (short scale)
One thousand million, or one milliard (long scale)
OrdinalOne billionth (short scale)
Factorization29 · 59
Greek numeral${\displaystyle {\stackrel {\iota }{\mathrm {M} }}}$
Roman numeralM
Binary1110111001101011001010000000002
Ternary21202002000210100013
Quaternary3232122302200004
Quinary40220000000005
Senary2431212453446
Octal73465450008
Duodecimal23AA9385412