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56672511 = 372698691
BaseRepresentation
bin1101100000110…
…0000011111111
310221122021001220
43120030003333
5104002010021
65342404423
71255464660
oct330140377
9127567056
1056672511
1129a98995
1216b90713
13b98353c
147753367
154e96cc6
hex360c0ff

56672511 has 8 divisors (see below), whose sum is σ = 86358144. Its totient is φ = 32384280.

The previous prime is 56672491. The next prime is 56672513. The reversal of 56672511 is 11527665.

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

It is not a de Polignac number, because 56672511 - 211 = 56670463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56672513) 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, 1349325 + ... + 1349366.

It is an arithmetic number, because the mean of its divisors is an integer number (10794768).

Almost surely, 256672511 is an apocalyptic number.

56672511 is a deficient number, since it is larger than the sum of its proper divisors (29685633).

56672511 is a wasteful number, since it uses less digits than its factorization.

56672511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698701.

The product of its digits is 12600, while the sum is 33.

The square root of 56672511 is about 7528.1147042271. The cubic root of 56672511 is about 384.1116550853. Note that the first 3 decimals are identical.

The spelling of 56672511 in words is "fifty-six million, six hundred seventy-two thousand, five hundred eleven".

Divisors: 1 3 7 21 2698691 8096073 18890837 56672511