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56608031521 = 463160176367
BaseRepresentation
bin110100101110000110…
…100000001100100001
312102010002222221202001
4310232012200030201
51411413124002041
642001054324001
74042541220526
oct645606401441
9172102887661
1056608031521
1122009837a28
12ab79ab9601
135451ab6c52
142a501b714d
151714a85131
hexd2e1a0321

56608031521 has 8 divisors (see below), whose sum is σ = 56766472704. Its totient is φ = 56449747200.

The previous prime is 56608031483. The next prime is 56608031573. The reversal of 56608031521 is 12513080665.

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 56608031521 - 27 = 56608031393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56608032521) 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, 703080 + ... + 779446.

It is an arithmetic number, because the mean of its divisors is an integer number (7095809088).

Almost surely, 256608031521 is an apocalyptic number.

It is an amenable number.

56608031521 is a deficient number, since it is larger than the sum of its proper divisors (158441183).

56608031521 is a wasteful number, since it uses less digits than its factorization.

56608031521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78431.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 56608031521 in words is "fifty-six billion, six hundred eight million, thirty-one thousand, five hundred twenty-one".

Divisors: 1 463 1601 76367 741263 35357921 122263567 56608031521