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80372928 = 2636472
BaseRepresentation
bin1001100101001…
…10010011000000
312121020100221010
410302212103000
5131033413203
611550400520
71664105256
oct462462300
9177210833
1080372928
1141406409
1222b00140
131386105c
14a9625d6
1570c9303
hex4ca64c0

80372928 has 42 divisors (see below), whose sum is σ = 212982556. Its totient is φ = 26749568.

The previous prime is 80372911. The next prime is 80372947. The reversal of 80372928 is 82927308.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123901 + ... + 124547.

Almost surely, 280372928 is an apocalyptic number.

It is an amenable number.

80372928 is an abundant number, since it is smaller than the sum of its proper divisors (132609628).

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

80372928 is an frugal number, since it uses more digits than its factorization.

80372928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 80372928 is about 8965.0949799765. The cubic root of 80372928 is about 431.5554411652. Note that the first 3 decimals are identical.

The spelling of 80372928 in words is "eighty million, three hundred seventy-two thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 647 1294 1941 2588 3882 5176 7764 10352 15528 20704 31056 41408 62112 124224 418609 837218 1255827 1674436 2511654 3348872 5023308 6697744 10046616 13395488 20093232 26790976 40186464 80372928