400 (number)

400 (four hundred) is the natural number following 399 and preceding 401.

This article is about the numbers 400 to 499. For the year 400 AD, see 400. For other uses, see 400 (disambiguation).
← 399 400 401 →
Cardinalfour hundred
Ordinal400th
(four hundredth)
Factorization24 × 52
Divisors1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
Greek numeralΥ´
Roman numeralCD
Binary1100100002
Ternary1122113
Senary15046
Octal6208
Duodecimal29412
Hexadecimal19016
Hebrewת
ArmenianՆ
Babylonian cuneiform𒐚𒐏
Egyptian hieroglyph𓍥
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