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87032086 = 2439710433
BaseRepresentation
bin1010011000000…
…00000100010110
320001202200120121
411030000010112
5134240011321
612345222154
72104521601
oct514000426
9201680517
1087032086
1145144549
122519195a
131505309b
14b7b7338
157992441
hex5300116

87032086 has 16 divisors (see below), whose sum is σ = 134974224. Its totient is φ = 42061824.

The previous prime is 87032083. The next prime is 87032093. The reversal of 87032086 is 68023078.

It is a happy number.

It is a super-2 number, since 2×870320862 = 15149167987022792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87032081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3126 + ... + 13558.

It is an arithmetic number, because the mean of its divisors is an integer number (8435889).

Almost surely, 287032086 is an apocalyptic number.

87032086 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

87032086 is a deficient number, since it is larger than the sum of its proper divisors (47942138).

87032086 is a wasteful number, since it uses less digits than its factorization.

87032086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10575.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 87032086 is about 9329.0988846726. The cubic root of 87032086 is about 443.1592284986.

The spelling of 87032086 in words is "eighty-seven million, thirty-two thousand, eighty-six".

Divisors: 1 2 43 86 97 194 4171 8342 10433 20866 448619 897238 1012001 2024002 43516043 87032086