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82531814975 = 5222314803913
BaseRepresentation
bin100110011011101000…
…1111000111000111111
321220000210011121012222
41030313101320320333
52323011121034400
6101525315115555
75651133565241
oct1146721707077
9256023147188
1082531814975
1132002070155
1213bb38a2bbb
137a2382339c
143dcd10c091
1522308d1185
hex1337478e3f

82531814975 has 12 divisors (see below), whose sum is σ = 102798378816. Its totient is φ = 65729369280.

The previous prime is 82531814947. The next prime is 82531814987. The reversal of 82531814975 is 57941813528.

It is not a de Polignac number, because 82531814975 - 222 = 82527620671 is a prime.

It is a super-3 number, since 3×825318149753 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7396382 + ... + 7407531.

It is an arithmetic number, because the mean of its divisors is an integer number (8566531568).

Almost surely, 282531814975 is an apocalyptic number.

82531814975 is a deficient number, since it is larger than the sum of its proper divisors (20266563841).

82531814975 is a wasteful number, since it uses less digits than its factorization.

82531814975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804146 (or 14804141 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 53.

The spelling of 82531814975 in words is "eighty-two billion, five hundred thirty-one million, eight hundred fourteen thousand, nine hundred seventy-five".

Divisors: 1 5 25 223 1115 5575 14803913 74019565 370097825 3301272599 16506362995 82531814975