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56663105 = 5109103969
BaseRepresentation
bin1101100000100…
…1110001000001
310221121210011112
43120021301001
5104001204410
65342253105
71255425362
oct330116101
9127553145
1056663105
1129a91914
1216b87195
13b97c185
14774db69
154e94105
hex3609c41

56663105 has 8 divisors (see below), whose sum is σ = 68620200. Its totient is φ = 44914176.

The previous prime is 56663093. The next prime is 56663137. The reversal of 56663105 is 50136665.

It can be written as a sum of positive squares in 4 ways, for example, as 6635776 + 50027329 = 2576^2 + 7073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56663105 - 28 = 56662849 is a prime.

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, 51440 + ... + 52529.

It is an arithmetic number, because the mean of its divisors is an integer number (8577525).

Almost surely, 256663105 is an apocalyptic number.

It is an amenable number.

56663105 is a deficient number, since it is larger than the sum of its proper divisors (11957095).

56663105 is a wasteful number, since it uses less digits than its factorization.

56663105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104083.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 56663105 is about 7527.4899534971. The cubic root of 56663105 is about 384.0904034293.

The spelling of 56663105 in words is "fifty-six million, six hundred sixty-three thousand, one hundred five".

Divisors: 1 5 109 545 103969 519845 11332621 56663105