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57132408 = 2332380517
BaseRepresentation
bin1101100111110…
…0010101111000
310222111121221010
43121330111320
5104111214113
65400313520
71262421534
oct331742570
9128447833
1057132408
112a282473
12171728a0
13bab4978
147832bc4
1550381c3
hex367c578

57132408 has 16 divisors (see below), whose sum is σ = 142831080. Its totient is φ = 19044128.

The previous prime is 57132379. The next prime is 57132409. The reversal of 57132408 is 80423175.

It is a super-2 number, since 2×571324082 = 6528224087756928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57132409) 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, 1190235 + ... + 1190282.

Almost surely, 257132408 is an apocalyptic number.

It is an amenable number.

57132408 is an abundant number, since it is smaller than the sum of its proper divisors (85698672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57132408 is a wasteful number, since it uses less digits than its factorization.

57132408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380526 (or 2380522 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 57132408 is about 7558.5982827506. The cubic root of 57132408 is about 385.1478782015.

The spelling of 57132408 in words is "fifty-seven million, one hundred thirty-two thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 24 2380517 4761034 7141551 9522068 14283102 19044136 28566204 57132408