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76912900 = 22528772
BaseRepresentation
bin1001001010110…
…01100100000100
312100201120122221
410211121210010
5124142203100
611344302124
71622514601
oct445314404
9170646587
1076912900
113a462889
1221911944
1312c1c1bc
14a3016a8
156b4401a
hex4959904

76912900 has 27 divisors (see below), whose sum is σ = 167091519. Its totient is φ = 30730080.

The previous prime is 76912889. The next prime is 76912919. The reversal of 76912900 is 921967.

The square root of 76912900 is 8770.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4186116 + 72726784 = 2046^2 + 8528^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87262 + ... + 88138.

Almost surely, 276912900 is an apocalyptic number.

76912900 is the 8770-th square number.

It is an amenable number.

76912900 is an abundant number, since it is smaller than the sum of its proper divisors (90178619).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76912900 is an equidigital number, since it uses as much as digits as its factorization.

76912900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The cubic root of 76912900 is about 425.2716141505.

The spelling of 76912900 in words is "seventy-six million, nine hundred twelve thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 877 1754 3508 4385 8770 17540 21925 43850 87700 769129 1538258 3076516 3845645 7691290 15382580 19228225 38456450 76912900