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56672361 = 3228122409
BaseRepresentation
bin1101100000110…
…0000001101001
310221122020212100
43120030001221
5104002003421
65342404013
71255464354
oct330140151
9127566770
1056672361
1129a98869
1216b90609
13b983455
14775329b
154e96c26
hex360c069

56672361 has 12 divisors (see below), whose sum is σ = 82155060. Its totient is φ = 37645440.

The previous prime is 56672359. The next prime is 56672377. The reversal of 56672361 is 16327665.

It can be written as a sum of positive squares in 2 ways, for example, as 35105625 + 21566736 = 5925^2 + 4644^2 .

It is not a de Polignac number, because 56672361 - 21 = 56672359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56674361) 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, 8676 + ... + 13733.

It is an arithmetic number, because the mean of its divisors is an integer number (6846255).

Almost surely, 256672361 is an apocalyptic number.

It is an amenable number.

56672361 is a deficient number, since it is larger than the sum of its proper divisors (25482699).

56672361 is a wasteful number, since it uses less digits than its factorization.

56672361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22696 (or 22693 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 56672361 is about 7528.1047415668. The cubic root of 56672361 is about 384.1113161979. Note that the first 3 decimals are identical.

It can be divided in two parts, 566 and 72361, that added together give a palindrome (72927).

The spelling of 56672361 in words is "fifty-six million, six hundred seventy-two thousand, three hundred sixty-one".

Divisors: 1 3 9 281 843 2529 22409 67227 201681 6296929 18890787 56672361