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87974652 = 223311731367
BaseRepresentation
bin1010011111001…
…10001011111100
320010112120112110
411033212023330
5140010142102
612421334020
72115525603
oct517461374
9203476473
1087974652
1145728727
1225567310
13152c310c
14b980a3a
157acb86c
hex53e62fc

87974652 has 48 divisors (see below), whose sum is σ = 213276672. Its totient is φ = 28194240.

The previous prime is 87974639. The next prime is 87974699. The reversal of 87974652 is 25647978.

It is a super-2 number, since 2×879746522 = 15479078789042208, which contains 22 as substring.

It is a congruent number.

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, 63673 + ... + 65039.

It is an arithmetic number, because the mean of its divisors is an integer number (4443264).

Almost surely, 287974652 is an apocalyptic number.

It is an amenable number.

87974652 is an abundant number, since it is smaller than the sum of its proper divisors (125302020).

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

87974652 is a wasteful number, since it uses less digits than its factorization.

87974652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1576 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 87974652 is about 9379.4803694021. The cubic root of 87974652 is about 444.7533068556.

The spelling of 87974652 in words is "eighty-seven million, nine hundred seventy-four thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 173 186 346 372 519 692 1038 1367 2076 2734 4101 5363 5468 8202 10726 16089 16404 21452 32178 42377 64356 84754 127131 169508 236491 254262 472982 508524 709473 945964 1418946 2837892 7331221 14662442 21993663 29324884 43987326 87974652