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57430074 = 23131395297
BaseRepresentation
bin1101101100010…
…1000000111010
311000001202020210
43123011000322
5104200230244
65410531550
71265101422
oct333050072
9130052223
1057430074
112a466079
1217296bb6
13bb8a2c0
1478ad482
1550964b9
hex36c503a

57430074 has 32 divisors (see below), whose sum is σ = 124608960. Its totient is φ = 17540352.

The previous prime is 57430067. The next prime is 57430123. The reversal of 57430074 is 47003475.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8194 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (3894030).

Almost surely, 257430074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57430074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62304480).

57430074 is an abundant number, since it is smaller than the sum of its proper divisors (67178886).

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

57430074 is a wasteful number, since it uses less digits than its factorization.

57430074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 57430074 is about 7578.2632575017. The cubic root of 57430074 is about 385.8156072052.

The spelling of 57430074 in words is "fifty-seven million, four hundred thirty thousand, seventy-four".

Divisors: 1 2 3 6 13 26 39 78 139 278 417 834 1807 3614 5297 5421 10594 10842 15891 31782 68861 137722 206583 413166 736283 1472566 2208849 4417698 9571679 19143358 28715037 57430074