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56688054 = 2323410783
BaseRepresentation
bin1101100000111…
…1110110110110
310221200001101120
43120033312312
5104003004204
65343004410
71255561203
oct330176666
9127601346
1056688054
1129aa9635
1216b99706
13b98a637
147758caa
154e9b6d9
hex360fdb6

56688054 has 16 divisors (see below), whose sum is σ = 118305792. Its totient is φ = 18074408.

The previous prime is 56688041. The next prime is 56688083. The reversal of 56688054 is 45088665.

It is a junction number, because it is equal to n+sod(n) for n = 56687997 and 56688015.

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, 205254 + ... + 205529.

It is an arithmetic number, because the mean of its divisors is an integer number (7394112).

Almost surely, 256688054 is an apocalyptic number.

56688054 is an abundant number, since it is smaller than the sum of its proper divisors (61617738).

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

56688054 is a wasteful number, since it uses less digits than its factorization.

56688054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410811.

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 56688054 is about 7529.1469636341. The cubic root of 56688054 is about 384.1467673566.

The spelling of 56688054 in words is "fifty-six million, six hundred eighty-eight thousand, fifty-four".

Divisors: 1 2 3 6 23 46 69 138 410783 821566 1232349 2464698 9448009 18896018 28344027 56688054