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57107193 = 31113133117
BaseRepresentation
bin1101100111011…
…0001011111001
310222110100100020
43121312023321
5104104412233
65400001053
71262255163
oct331661371
9128410306
1057107193
112a265530
1217160189
13baa6350
147827933
1550309b3
hex36762f9

57107193 has 16 divisors (see below), whose sum is σ = 89455296. Its totient is φ = 31947840.

The previous prime is 57107191. The next prime is 57107203. The reversal of 57107193 is 39170175.

It is not a de Polignac number, because 57107193 - 21 = 57107191 is a prime.

It is a super-2 number, since 2×571071932 = 6522462984678498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (57107191) 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, 66130 + ... + 66987.

It is an arithmetic number, because the mean of its divisors is an integer number (5590956).

Almost surely, 257107193 is an apocalyptic number.

It is an amenable number.

57107193 is a deficient number, since it is larger than the sum of its proper divisors (32348103).

57107193 is a wasteful number, since it uses less digits than its factorization.

57107193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133144.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 57107193 is about 7556.9301306814. The cubic root of 57107193 is about 385.0912090643.

The spelling of 57107193 in words is "fifty-seven million, one hundred seven thousand, one hundred ninety-three".

Divisors: 1 3 11 13 33 39 143 429 133117 399351 1464287 1730521 4392861 5191563 19035731 57107193