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87165952 = 210233701
BaseRepresentation
bin1010011001000…
…00110000000000
320002000111012121
411030200300000
5134303302302
612352134024
72105620066
oct514406000
9202014177
1087165952
1145226085
1225237314
131509bcb3
14b810036
1579bbe37
hex5320c00

87165952 has 44 divisors (see below), whose sum is σ = 181871856. Its totient is φ = 41676800.

The previous prime is 87165943. The next prime is 87165961. The reversal of 87165952 is 25956178.

It is an interprime number because it is at equal distance from previous prime (87165943) and next prime (87165961).

It is a junction number, because it is equal to n+sod(n) for n = 87165899 and 87165908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21702 + ... + 25402.

Almost surely, 287165952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87165952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90935928).

87165952 is an abundant number, since it is smaller than the sum of its proper divisors (94705904).

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

87165952 is a wasteful number, since it uses less digits than its factorization.

87165952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744 (or 3726 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 87165952 is about 9336.2707758505. The cubic root of 87165952 is about 443.3863231489.

The spelling of 87165952 in words is "eighty-seven million, one hundred sixty-five thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 256 368 512 736 1024 1472 2944 3701 5888 7402 11776 14804 23552 29608 59216 85123 118432 170246 236864 340492 473728 680984 947456 1361968 1894912 2723936 3789824 5447872 10895744 21791488 43582976 87165952