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56670790 = 25113116619
BaseRepresentation
bin1101100000101…
…1101001000110
310221122011201011
43120023221012
5104001431130
65342352434
71255456651
oct330135106
9127564634
1056670790
1129a97670
1216b8b71a
13b982817
147752898
154e9652a
hex360ba46

56670790 has 32 divisors (see below), whose sum is σ = 114877440. Its totient is φ = 19941600.

The previous prime is 56670773. The next prime is 56670799. The reversal of 56670790 is 9707665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56670799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4900 + ... + 11719.

It is an arithmetic number, because the mean of its divisors is an integer number (3589920).

Almost surely, 256670790 is an apocalyptic number.

56670790 is an abundant number, since it is smaller than the sum of its proper divisors (58206650).

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

56670790 is a wasteful number, since it uses less digits than its factorization.

56670790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16668.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 56670790 is about 7528.0003985122. Note that the first 3 decimals coincide. The cubic root of 56670790 is about 384.1077668813.

The spelling of 56670790 in words is "fifty-six million, six hundred seventy thousand, seven hundred ninety".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 682 1705 3410 16619 33238 83095 166190 182809 365618 515189 914045 1030378 1828090 2575945 5151890 5667079 11334158 28335395 56670790