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56917053 = 3329157463
BaseRepresentation
bin1101100100011…
…1110000111101
310222002200112000
43121013300331
5104032321203
65351532513
71260533634
oct331076075
9128080460
1056917053
112a145696
121708a139
13ba3a93b
1477b851b
154ee44a3
hex3647c3d

56917053 has 32 divisors (see below), whose sum is σ = 87974400. Its totient is φ = 36324288.

The previous prime is 56917031. The next prime is 56917057. The reversal of 56917053 is 35071965.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-56917053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56916999 and 56917017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56917057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122700 + ... + 123162.

It is an arithmetic number, because the mean of its divisors is an integer number (2749200).

Almost surely, 256917053 is an apocalyptic number.

It is an amenable number.

56917053 is a deficient number, since it is larger than the sum of its proper divisors (31057347).

56917053 is a wasteful number, since it uses less digits than its factorization.

56917053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 56917053 is about 7544.3391360675. The cubic root of 56917053 is about 384.6633431899.

The spelling of 56917053 in words is "fifty-six million, nine hundred seventeen thousand, fifty-three".

Divisors: 1 3 9 27 29 87 157 261 463 471 783 1389 1413 4167 4239 4553 12501 13427 13659 40281 40977 72691 120843 122931 218073 362529 654219 1962657 2108039 6324117 18972351 56917053