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57407672 = 2371025137
BaseRepresentation
bin1101101011111…
…1100010111000
311000000121112002
43122333202320
5104144021142
65410240132
71264646210
oct332774270
9130017462
1057407672
112a450263
1217286048
13bb8004a
1478a5240
15508ea32
hex36bf8b8

57407672 has 16 divisors (see below), whose sum is σ = 123016560. Its totient is φ = 24603264.

The previous prime is 57407659. The next prime is 57407681. The reversal of 57407672 is 27670475.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512513 + ... + 512624.

It is an arithmetic number, because the mean of its divisors is an integer number (7688535).

Almost surely, 257407672 is an apocalyptic number.

It is an amenable number.

57407672 is an abundant number, since it is smaller than the sum of its proper divisors (65608888).

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

57407672 is a wasteful number, since it uses less digits than its factorization.

57407672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025150 (or 1025146 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 57407672 is about 7576.7850701996. The cubic root of 57407672 is about 385.7654350876.

The spelling of 57407672 in words is "fifty-seven million, four hundred seven thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 1025137 2050274 4100548 7175959 8201096 14351918 28703836 57407672