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57099079013 = 83687940711
BaseRepresentation
bin110101001011010111…
…101100110101100101
312110101022222202021012
4311023113230311211
51413414331012023
642121515232005
74060653110054
oct651327546545
9173338882235
1057099079013
1122240a3a1a9
12b096448605
1354cc7561b2
142a994bc39b
151742c30978
hexd4b5ecd65

57099079013 has 4 divisors (see below), whose sum is σ = 57787019808. Its totient is φ = 56411138220.

The previous prime is 57099078997. The next prime is 57099079027. The reversal of 57099079013 is 31097099075.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57099079013 - 24 = 57099078997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57099073013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343970273 + ... + 343970438.

It is an arithmetic number, because the mean of its divisors is an integer number (14446754952).

Almost surely, 257099079013 is an apocalyptic number.

It is an amenable number.

57099079013 is a deficient number, since it is larger than the sum of its proper divisors (687940795).

57099079013 is an equidigital number, since it uses as much as digits as its factorization.

57099079013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687940794.

The product of its (nonzero) digits is 535815, while the sum is 50.

The spelling of 57099079013 in words is "fifty-seven billion, ninety-nine million, seventy-nine thousand, thirteen".

Divisors: 1 83 687940711 57099079013