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57234157 = 792572819
BaseRepresentation
bin1101101001010…
…1001011101101
310222200210111121
43122111023231
5104122443112
65402420541
71263324301
oct332251355
9128623447
1057234157
112a341962
1217201751
13bb1c086
14785bd01
155058407
hex36952ed

57234157 has 8 divisors (see below), whose sum is σ = 58204800. Its totient is φ = 56269824.

The previous prime is 57234103. The next prime is 57234167. The reversal of 57234157 is 75143275.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57234157 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 (57234167) 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, 18894 + ... + 21712.

It is an arithmetic number, because the mean of its divisors is an integer number (7275600).

Almost surely, 257234157 is an apocalyptic number.

It is an amenable number.

57234157 is a deficient number, since it is larger than the sum of its proper divisors (970643).

57234157 is a wasteful number, since it uses less digits than its factorization.

57234157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155.

The product of its digits is 29400, while the sum is 34.

The square root of 57234157 is about 7565.3259678615. The cubic root of 57234157 is about 385.3763834804.

The spelling of 57234157 in words is "fifty-seven million, two hundred thirty-four thousand, one hundred fifty-seven".

Divisors: 1 79 257 2819 20303 222701 724483 57234157