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57253113 = 326361457
BaseRepresentation
bin1101101001100…
…1110011111001
310222201202111200
43122121303321
5104124044423
65403044413
71263433461
oct332316371
9128652450
1057253113
112a355125
1217210709
13bb278a8
147864ba1
15505dd43
hex3699cf9

57253113 has 6 divisors (see below), whose sum is σ = 82698954. Its totient is φ = 38168736.

The previous prime is 57253109. The next prime is 57253199. The reversal of 57253113 is 31135275.

It can be written as a sum of positive squares in only one way, i.e., 30503529 + 26749584 = 5523^2 + 5172^2 .

It is not a de Polignac number, because 57253113 - 22 = 57253109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57253103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3180720 + ... + 3180737.

It is an arithmetic number, because the mean of its divisors is an integer number (13783159).

Almost surely, 257253113 is an apocalyptic number.

It is an amenable number.

57253113 is a deficient number, since it is larger than the sum of its proper divisors (25445841).

57253113 is a wasteful number, since it uses less digits than its factorization.

57253113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361463 (or 6361460 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 57253113 is about 7566.5786852447. The cubic root of 57253113 is about 385.4189244429.

Adding to 57253113 its reverse (31135275), we get a palindrome (88388388).

The spelling of 57253113 in words is "fifty-seven million, two hundred fifty-three thousand, one hundred thirteen".

Divisors: 1 3 9 6361457 19084371 57253113