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56766972 = 22326317987
BaseRepresentation
bin1101100010001…
…1000111111100
310221211001122110
43120203013330
5104013020342
65344414020
71256340243
oct330430774
9127731573
1056766972
112a052959
1217017310
13b9b7532
14777995a
154eb4c9c
hex36231fc

56766972 has 24 divisors (see below), whose sum is σ = 132967296. Its totient is φ = 18849328.

The previous prime is 56766953. The next prime is 56766973. The reversal of 56766972 is 27966765.

It is a super-2 number, since 2×567669722 = 6444978220097568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56766973) 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, 5838 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (5540304).

Almost surely, 256766972 is an apocalyptic number.

It is an amenable number.

56766972 is an abundant number, since it is smaller than the sum of its proper divisors (76200324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56766972 is a wasteful number, since it uses less digits than its factorization.

56766972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18257 (or 18255 counting only the distinct ones).

The product of its digits is 952560, while the sum is 48.

The square root of 56766972 is about 7534.3859736544. The cubic root of 56766972 is about 384.3249473856.

The spelling of 56766972 in words is "fifty-six million, seven hundred sixty-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 263 526 789 1052 1578 3156 17987 35974 53961 71948 107922 215844 4730581 9461162 14191743 18922324 28383486 56766972