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86984120713 = 721775186137
BaseRepresentation
bin101000100000010101…
…0000101100110001001
322022112001222011111111
41101000222011212021
52411120413330323
6103543203330321
76166355553400
oct1210052054611
9268461864444
1086984120713
11339872a5376
1214a369809a1
13828306b119
1442d2560637
1523e16ecc0d
hex1440a85989

86984120713 has 6 divisors (see below), whose sum is σ = 101185609866. Its totient is φ = 74557817712.

The previous prime is 86984120683. The next prime is 86984120767. The reversal of 86984120713 is 31702148968.

It can be written as a sum of positive squares in only one way, i.e., 43502279184 + 43481841529 = 208572^2 + 208523^2 .

It is not a de Polignac number, because 86984120713 - 221 = 86982023561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1775186137 = 86984120713 / (8 + 6 + 9 + 8 + 4 + 1 + 2 + 0 + 7 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86984100713) 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 5 ways as a sum of consecutive naturals, for example, 887593020 + ... + 887593117.

It is an arithmetic number, because the mean of its divisors is an integer number (16864268311).

Almost surely, 286984120713 is an apocalyptic number.

It is an amenable number.

86984120713 is a deficient number, since it is larger than the sum of its proper divisors (14201489153).

86984120713 is a wasteful number, since it uses less digits than its factorization.

86984120713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775186151 (or 1775186144 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 86984120713 in words is "eighty-six billion, nine hundred eighty-four million, one hundred twenty thousand, seven hundred thirteen".

Divisors: 1 7 49 1775186137 12426302959 86984120713