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56764764 = 22327225257
BaseRepresentation
bin1101100010001…
…0100101011100
310221210221121200
43120202211130
5104012433024
65344355500
71256330640
oct330424534
9127727550
1056764764
112a051231
1217015b90
13b9b6524
147778c20
154eb42c9
hex362295c

56764764 has 36 divisors (see below), whose sum is σ = 163987824. Its totient is φ = 16218432.

The previous prime is 56764733. The next prime is 56764769. The reversal of 56764764 is 46746765.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56764769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112377 + ... + 112880.

Almost surely, 256764764 is an apocalyptic number.

It is an amenable number.

56764764 is an abundant number, since it is smaller than the sum of its proper divisors (107223060).

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

56764764 is a wasteful number, since it uses less digits than its factorization.

56764764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225274 (or 225269 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 56764764 is about 7534.2394440315. The cubic root of 56764764 is about 384.3199644383.

It can be divided in two parts, 5676 and 4764, that added together give a triangular number (10440 = T144).

The spelling of 56764764 in words is "fifty-six million, seven hundred sixty-four thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 225257 450514 675771 901028 1351542 1576799 2027313 2703084 3153598 4054626 4730397 6307196 8109252 9460794 14191191 18921588 28382382 56764764