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80616612 = 22323928109
BaseRepresentation
bin1001100111000…
…01110010100100
312121200202012110
410303201302210
5131114212422
611555521020
71666141566
oct463416244
9177622173
1080616612
11415624aa
1222bb9170
1313917c4b
14a9c7336
15712660c
hex4ce1ca4

80616612 has 24 divisors (see below), whose sum is σ = 188899200. Its totient is φ = 26758816.

The previous prime is 80616589. The next prime is 80616617. The reversal of 80616612 is 21661608.

It is a self number, because there is not a number n which added to its sum of digits gives 80616612.

It is not an unprimeable number, because it can be changed into a prime (80616617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11187 + ... + 16922.

It is an arithmetic number, because the mean of its divisors is an integer number (7870800).

Almost surely, 280616612 is an apocalyptic number.

It is an amenable number.

80616612 is an abundant number, since it is smaller than the sum of its proper divisors (108282588).

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

80616612 is a wasteful number, since it uses less digits than its factorization.

80616612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28355 (or 28353 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 80616612 is about 8978.6754034212. The cubic root of 80616612 is about 431.9911477953.

The spelling of 80616612 in words is "eighty million, six hundred sixteen thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 239 478 717 956 1434 2868 28109 56218 84327 112436 168654 337308 6718051 13436102 20154153 26872204 40308306 80616612