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87125384 = 2319954727
BaseRepresentation
bin1010011000101…
…10110110001000
320001221102120002
411030112312020
5134301003014
612351222132
72105360603
oct514266610
9201842502
1087125384
11451a8655
1225217948
13150866a8
14b7dd33a
1579aedde
hex5316d88

87125384 has 16 divisors (see below), whose sum is σ = 164184000. Its totient is φ = 43342992.

The previous prime is 87125377. The next prime is 87125419. The reversal of 87125384 is 48352178.

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, 25772 + ... + 28955.

It is an arithmetic number, because the mean of its divisors is an integer number (10261500).

Almost surely, 287125384 is an apocalyptic number.

It is an amenable number.

87125384 is a deficient number, since it is larger than the sum of its proper divisors (77058616).

87125384 is a wasteful number, since it uses less digits than its factorization.

87125384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54932 (or 54928 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 87125384 is about 9334.0979210634. The cubic root of 87125384 is about 443.3175268389.

The spelling of 87125384 in words is "eighty-seven million, one hundred twenty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 199 398 796 1592 54727 109454 218908 437816 10890673 21781346 43562692 87125384