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56604365805 = 3513290278799
BaseRepresentation
bin110100101101111000…
…100001001111101101
312102002212002201022210
4310231320201033231
51411411204201210
642000444001033
74042465112361
oct645570411755
9172085081283
1056604365805
1122007763909
12ab78830179
1354511025a0
142a4d9012a1
1517145ade20
hexd2de213ed

56604365805 has 16 divisors (see below), whose sum is σ = 97533676800. Its totient is φ = 27866764608.

The previous prime is 56604365801. The next prime is 56604365921. The reversal of 56604365805 is 50856340665.

It is not a de Polignac number, because 56604365805 - 22 = 56604365801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56604365801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145139205 + ... + 145139594.

It is an arithmetic number, because the mean of its divisors is an integer number (6095854800).

Almost surely, 256604365805 is an apocalyptic number.

It is an amenable number.

56604365805 is a deficient number, since it is larger than the sum of its proper divisors (40929310995).

56604365805 is a wasteful number, since it uses less digits than its factorization.

56604365805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290278820.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 56604365805 in words is "fifty-six billion, six hundred four million, three hundred sixty-five thousand, eight hundred five".

Divisors: 1 3 5 13 15 39 65 195 290278799 870836397 1451393995 3773624387 4354181985 11320873161 18868121935 56604365805