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57252679 = 115204789
BaseRepresentation
bin1101101001100…
…1101101000111
310222201201220121
43122121231013
5104124041204
65403042411
71263432301
oct332315507
9128651817
1057252679
112a354870
1217210407
13bb27633
147864971
15505db54
hex3699b47

57252679 has 4 divisors (see below), whose sum is σ = 62457480. Its totient is φ = 52047880.

The previous prime is 57252677. The next prime is 57252749. The reversal of 57252679 is 97625275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57252679 - 21 = 57252677 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 (57252673) 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, 2602384 + ... + 2602405.

It is an arithmetic number, because the mean of its divisors is an integer number (15614370).

Almost surely, 257252679 is an apocalyptic number.

57252679 is a deficient number, since it is larger than the sum of its proper divisors (5204801).

57252679 is a wasteful number, since it uses less digits than its factorization.

57252679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204800.

The product of its digits is 264600, while the sum is 43.

The square root of 57252679 is about 7566.5500064428. The cubic root of 57252679 is about 385.4179505673.

The spelling of 57252679 in words is "fifty-seven million, two hundred fifty-two thousand, six hundred seventy-nine".

Divisors: 1 11 5204789 57252679