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56006049993 = 3171139718211
BaseRepresentation
bin110100001010001110…
…001000000011001001
312100120011021010022220
4310022032020003021
51404200022044433
641421232004253
74021611366405
oct641216100311
9170504233286
1056006049993
112182aa56333
12aa30390689
13538717646a
1429d4276105
1516cbcc52b3
hexd0a3880c9

56006049993 has 16 divisors (see below), whose sum is σ = 79767084096. Its totient is φ = 34830064640.

The previous prime is 56006049991. The next prime is 56006050031. The reversal of 56006049993 is 39994060065.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56006049993 - 21 = 56006049991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56006049991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4853343 + ... + 4864868.

It is an arithmetic number, because the mean of its divisors is an integer number (4985442756).

Almost surely, 256006049993 is an apocalyptic number.

It is an amenable number.

56006049993 is a deficient number, since it is larger than the sum of its proper divisors (23761034103).

56006049993 is a wasteful number, since it uses less digits than its factorization.

56006049993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9718344.

The product of its (nonzero) digits is 1574640, while the sum is 51.

The spelling of 56006049993 in words is "fifty-six billion, six million, forty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 17 51 113 339 1921 5763 9718211 29154633 165209587 495628761 1098157843 3294473529 18668683331 56006049993