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57192071 = 196744927
BaseRepresentation
bin1101101000101…
…0111010000111
310222121122202212
43122022322013
5104120121241
65401454035
71263060506
oct332127207
9128548685
1057192071
112a313282
12171a131b
13bb05b81
14784a83d
15504abeb
hex368ae87

57192071 has 8 divisors (see below), whose sum is σ = 61102080. Its totient is φ = 53372088.

The previous prime is 57192067. The next prime is 57192101. The reversal of 57192071 is 17029175.

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

It is a cyclic number.

It is not a de Polignac number, because 57192071 - 22 = 57192067 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 (57192041) 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, 21191 + ... + 23736.

It is an arithmetic number, because the mean of its divisors is an integer number (7637760).

Almost surely, 257192071 is an apocalyptic number.

57192071 is a deficient number, since it is larger than the sum of its proper divisors (3910009).

57192071 is a wasteful number, since it uses less digits than its factorization.

57192071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45013.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 57192071 is about 7562.5439502855. The cubic root of 57192071 is about 385.2819006961.

The spelling of 57192071 in words is "fifty-seven million, one hundred ninety-two thousand, seventy-one".

Divisors: 1 19 67 1273 44927 853613 3010109 57192071