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56600139 = 337350581
BaseRepresentation
bin1101011111101…
…0011001001011
310221111120210110
43113322121023
5103442201024
65341045403
71255043661
oct327723113
9127446713
1056600139
1129a49582
1216b56863
13b95960b
147734c31
154e80629
hex35fa64b

56600139 has 8 divisors (see below), whose sum is σ = 75670672. Its totient is φ = 37631520.

The previous prime is 56600119. The next prime is 56600143. The reversal of 56600139 is 93100665.

It is a happy number.

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

It is not a de Polignac number, because 56600139 - 28 = 56599883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56600119) 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, 24172 + ... + 26409.

It is an arithmetic number, because the mean of its divisors is an integer number (9458834).

Almost surely, 256600139 is an apocalyptic number.

56600139 is a deficient number, since it is larger than the sum of its proper divisors (19070533).

56600139 is a wasteful number, since it uses less digits than its factorization.

56600139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50957.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 56600139 is about 7523.3063874868. The cubic root of 56600139 is about 383.9480791888.

The spelling of 56600139 in words is "fifty-six million, six hundred thousand, one hundred thirty-nine".

Divisors: 1 3 373 1119 50581 151743 18866713 56600139