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57475231 = 1126319867
BaseRepresentation
bin1101101101000…
…0000010011111
311000011001012021
43123100002133
5104203201411
65411521011
71265350162
oct333200237
9130131167
1057475231
112a496aa0
12172b9167
13bba4a18
1478c1ad9
1550a4a71
hex36d009f

57475231 has 8 divisors (see below), whose sum is σ = 62941824. Its totient is φ = 52048920.

The previous prime is 57475217. The next prime is 57475277. The reversal of 57475231 is 13257475.

57475231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57475231 - 211 = 57473183 is a prime.

It is a super-2 number, since 2×574752312 = 6606804357006722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57475211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7041 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (7867728).

Almost surely, 257475231 is an apocalyptic number.

57475231 is a deficient number, since it is larger than the sum of its proper divisors (5466593).

57475231 is a wasteful number, since it uses less digits than its factorization.

57475231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20141.

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

The square root of 57475231 is about 7581.2420486356. The cubic root of 57475231 is about 385.9167023853.

The spelling of 57475231 in words is "fifty-seven million, four hundred seventy-five thousand, two hundred thirty-one".

Divisors: 1 11 263 2893 19867 218537 5225021 57475231