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57452137 = 236613779
BaseRepresentation
bin1101101100101…
…0011001101001
311000002212111221
43123022121221
5104201432022
65411222041
71265222641
oct333123151
9130085457
1057452137
112a480706
12172a7921
13bb97362
1478b7521
15509ccc7
hex36ca669

57452137 has 8 divisors (see below), whose sum is σ = 60056640. Its totient is φ = 54856560.

The previous prime is 57452123. The next prime is 57452141. The reversal of 57452137 is 73125475.

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-57452137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57452117) 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, 13314 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (7507080).

Almost surely, 257452137 is an apocalyptic number.

It is an amenable number.

57452137 is a deficient number, since it is larger than the sum of its proper divisors (2604503).

57452137 is a wasteful number, since it uses less digits than its factorization.

57452137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463.

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

The square root of 57452137 is about 7579.7187942562. The cubic root of 57452137 is about 385.8650073385.

The spelling of 57452137 in words is "fifty-seven million, four hundred fifty-two thousand, one hundred thirty-seven".

Divisors: 1 23 661 3779 15203 86917 2497919 57452137