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56993911738 = 2139277740123
BaseRepresentation
bin110101000101000110…
…100001001110111010
312110010000002200212221
4311011012201032322
51413210420133423
642103241154254
74055235153661
oct650506411672
9173100080787
1056993911738
11221976394a5
12b06718b98a
1354b3a2373a
142a89543dd8
1517388a9e5d
hexd451a13ba

56993911738 has 16 divisors (see below), whose sum is σ = 86416878240. Its totient is φ = 28189766736.

The previous prime is 56993911699. The next prime is 56993911739. The reversal of 56993911738 is 83711939965.

It is not an unprimeable number, because it can be changed into a prime (56993911739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293056 + ... + 447067.

It is an arithmetic number, because the mean of its divisors is an integer number (5401054890).

Almost surely, 256993911738 is an apocalyptic number.

56993911738 is a deficient number, since it is larger than the sum of its proper divisors (29422966502).

56993911738 is a wasteful number, since it uses less digits than its factorization.

56993911738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740541.

The product of its digits is 11022480, while the sum is 61.

The spelling of 56993911738 in words is "fifty-six billion, nine hundred ninety-three million, nine hundred eleven thousand, seven hundred thirty-eight".

Divisors: 1 2 139 277 278 554 38503 77006 740123 1480246 102877097 205014071 205754194 410028142 28496955869 56993911738