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87016713 = 3719218087
BaseRepresentation
bin1010010111111…
…00010100001001
320001201220111020
411023330110021
5134234013323
612345023053
72104426020
oct513742411
9201656436
1087016713
1145133a43
1225184a89
13150490a4
14b7b18b7
15798cae3
hex52fc509

87016713 has 16 divisors (see below), whose sum is σ = 139576320. Its totient is φ = 47106576.

The previous prime is 87016703. The next prime is 87016723. The reversal of 87016713 is 31761078.

It is an interprime number because it is at equal distance from previous prime (87016703) and next prime (87016723).

It is not a de Polignac number, because 87016713 - 24 = 87016697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87016703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108645 + ... + 109442.

It is an arithmetic number, because the mean of its divisors is an integer number (8723520).

Almost surely, 287016713 is an apocalyptic number.

It is an amenable number.

87016713 is a deficient number, since it is larger than the sum of its proper divisors (52559607).

87016713 is a wasteful number, since it uses less digits than its factorization.

87016713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218116.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 87016713 is about 9328.2749209058. The cubic root of 87016713 is about 443.1331343369.

The spelling of 87016713 in words is "eighty-seven million, sixteen thousand, seven hundred thirteen".

Divisors: 1 3 7 19 21 57 133 399 218087 654261 1526609 4143653 4579827 12430959 29005571 87016713