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56513047 = 234159929
BaseRepresentation
bin1101011110010…
…1001000010111
310221100011022211
43113211020113
5103431404142
65335134251
71254232033
oct327451027
9127304284
1056513047
112999a0a8
1216b14387
13b928a96
1477111c3
154e64917
hex35e5217

56513047 has 8 divisors (see below), whose sum is σ = 60409440. Its totient is φ = 52736640.

The previous prime is 56513033. The next prime is 56513057. The reversal of 56513047 is 74031565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56513047 - 27 = 56512919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56513027) 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, 29022 + ... + 30907.

It is an arithmetic number, because the mean of its divisors is an integer number (7551180).

Almost surely, 256513047 is an apocalyptic number.

56513047 is a deficient number, since it is larger than the sum of its proper divisors (3896393).

56513047 is a wasteful number, since it uses less digits than its factorization.

56513047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59993.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 56513047 is about 7517.5160126201. The cubic root of 56513047 is about 383.7510480366.

The spelling of 56513047 in words is "fifty-six million, five hundred thirteen thousand, forty-seven".

Divisors: 1 23 41 943 59929 1378367 2457089 56513047