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80560056 = 23326312763
BaseRepresentation
bin1001100110100…
…11111110111000
312121120212121210
410303103332320
5131110410211
611554403120
71665514653
oct463237670
9177525553
1080560056
1141523a65
1222b904a0
13138c8295
14a9b089a
1571149a6
hex4cd3fb8

80560056 has 32 divisors (see below), whose sum is σ = 202181760. Its totient is φ = 26749152.

The previous prime is 80560033. The next prime is 80560061. The reversal of 80560056 is 65006508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70 + ... + 12693.

It is an arithmetic number, because the mean of its divisors is an integer number (6318180).

Almost surely, 280560056 is an apocalyptic number.

It is an amenable number.

80560056 is an abundant number, since it is smaller than the sum of its proper divisors (121621704).

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

80560056 is a wasteful number, since it uses less digits than its factorization.

80560056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13035 (or 13031 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 80560056 is about 8975.5253885218. The cubic root of 80560056 is about 431.8901040763.

The spelling of 80560056 in words is "eighty million, five hundred sixty thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 263 526 789 1052 1578 2104 3156 6312 12763 25526 38289 51052 76578 102104 153156 306312 3356669 6713338 10070007 13426676 20140014 26853352 40280028 80560056