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57238953 = 3291733803
BaseRepresentation
bin1101101001011…
…0010110101001
310222201001002020
43122112112221
5104123121303
65402455053
71263344262
oct332262651
9128631066
1057238953
112a345522
1217204489
13bb21305
14785d969
155059a53
hex36965a9

57238953 has 16 divisors (see below), whose sum is σ = 79427520. Its totient is φ = 36620864.

The previous prime is 57238939. The next prime is 57238981. The reversal of 57238953 is 35983275.

It is a cyclic number.

It is not a de Polignac number, because 57238953 - 212 = 57234857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57238253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13150 + ... + 16952.

It is an arithmetic number, because the mean of its divisors is an integer number (4964220).

Almost surely, 257238953 is an apocalyptic number.

It is an amenable number.

57238953 is a deficient number, since it is larger than the sum of its proper divisors (22188567).

57238953 is a wasteful number, since it uses less digits than its factorization.

57238953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008.

The product of its digits is 226800, while the sum is 42.

The square root of 57238953 is about 7565.6429336838. The cubic root of 57238953 is about 385.3871475277.

The spelling of 57238953 in words is "fifty-seven million, two hundred thirty-eight thousand, nine hundred fifty-three".

Divisors: 1 3 29 87 173 519 3803 5017 11409 15051 110287 330861 657919 1973757 19079651 57238953