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87264125 = 531383647
BaseRepresentation
bin1010011001110…
…00101101111101
320002012110212122
411030320231331
5134314423000
612354212325
72106506234
oct514705575
9202173778
1087264125
1145292913
12252840a5
13151048a0
14b837b1b
1579db085
hex5338b7d

87264125 has 32 divisors (see below), whose sum is σ = 118879488. Its totient is φ = 63566400.

The previous prime is 87264109. The next prime is 87264181. The reversal of 87264125 is 52146278.

It is not a de Polignac number, because 87264125 - 24 = 87264109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134552 + ... + 135198.

It is an arithmetic number, because the mean of its divisors is an integer number (3714984).

Almost surely, 287264125 is an apocalyptic number.

It is an amenable number.

87264125 is a deficient number, since it is larger than the sum of its proper divisors (31615363).

87264125 is a wasteful number, since it uses less digits than its factorization.

87264125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 748 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 87264125 is about 9341.5269094512. The cubic root of 87264125 is about 443.5527192894.

The spelling of 87264125 in words is "eighty-seven million, two hundred sixty-four thousand, one hundred twenty-five".

Divisors: 1 5 13 25 65 83 125 325 415 647 1079 1625 2075 3235 5395 8411 10375 16175 26975 42055 53701 80875 134875 210275 268505 698113 1051375 1342525 3490565 6712625 17452825 87264125