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57157051 = 79118963
BaseRepresentation
bin1101101000001…
…0010110111011
310222112212201211
43122002112323
5104113011201
65401023551
71262553430
oct332022673
9128485654
1057157051
112a299a36
1217184bb7
13bac2c53
14783bb87
155040651
hex36825bb

57157051 has 8 divisors (see below), whose sum is σ = 65401344. Its totient is φ = 48932520.

The previous prime is 57157033. The next prime is 57157081. The reversal of 57157051 is 15075175.

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

It is not a de Polignac number, because 57157051 - 217 = 57025979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57157021) 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, 1896 + ... + 10858.

It is an arithmetic number, because the mean of its divisors is an integer number (8175168).

Almost surely, 257157051 is an apocalyptic number.

57157051 is a deficient number, since it is larger than the sum of its proper divisors (8244293).

57157051 is an equidigital number, since it uses as much as digits as its factorization.

57157051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881.

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 57157051 is about 7560.2282372955. The cubic root of 57157051 is about 385.2032456961.

The spelling of 57157051 in words is "fifty-seven million, one hundred fifty-seven thousand, fifty-one".

Divisors: 1 7 911 6377 8963 62741 8165293 57157051