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56993130 = 2325633257
BaseRepresentation
bin1101100101101…
…0010101101010
310222020112212200
43121122111222
5104042240010
65353321030
71261301505
oct331322552
9128215780
1056993130
112a197867
1217106176
13ba6645c
1477d813c
15500bcc0
hex365a56a

56993130 has 24 divisors (see below), whose sum is σ = 148182372. Its totient is φ = 15198144.

The previous prime is 56993107. The next prime is 56993137. The reversal of 56993130 is 3139965.

56993130 is a `hidden beast` number, since 569 + 93 + 1 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55487601 + 1505529 = 7449^2 + 1227^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56993137) 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, 316539 + ... + 316718.

Almost surely, 256993130 is an apocalyptic number.

56993130 is an abundant number, since it is smaller than the sum of its proper divisors (91189242).

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

56993130 is a wasteful number, since it uses less digits than its factorization.

56993130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633270 (or 633267 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 56993130 is about 7549.3794446961. The cubic root of 56993130 is about 384.8346509844.

The spelling of 56993130 in words is "fifty-six million, nine hundred ninety-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 633257 1266514 1899771 3166285 3799542 5699313 6332570 9498855 11398626 18997710 28496565 56993130