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56624906 = 2132177881
BaseRepresentation
bin1101100000000…
…0011100001010
310221112211202202
43120000130022
5103443444111
65341400202
71255206122
oct330003412
9127484682
1056624906
1129a66148
1216b69062
13b967980
14773dc82
154e87b3b
hex360070a

56624906 has 8 divisors (see below), whose sum is σ = 91471044. Its totient is φ = 26134560.

The previous prime is 56624903. The next prime is 56624927. The reversal of 56624906 is 60942665.

It can be written as a sum of positive squares in 2 ways, for example, as 47045881 + 9579025 = 6859^2 + 3095^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 56624906.

It is not an unprimeable number, because it can be changed into a prime (56624903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088915 + ... + 1088966.

Almost surely, 256624906 is an apocalyptic number.

56624906 is a deficient number, since it is larger than the sum of its proper divisors (34846138).

56624906 is a wasteful number, since it uses less digits than its factorization.

56624906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177896.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 56624906 is about 7524.9522257620. The cubic root of 56624906 is about 384.0040734883.

It can be divided in two parts, 5662 and 4906, that multiplied together give a palindrome (27777772).

The spelling of 56624906 in words is "fifty-six million, six hundred twenty-four thousand, nine hundred six".

Divisors: 1 2 13 26 2177881 4355762 28312453 56624906