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82517018017 = 7431282321379
BaseRepresentation
bin100110011011001100…
…1011100010110100001
321212222202022211121111
41030312121130112201
52322443324034032
6101524030023321
75650564036360
oct1146631342641
9255882284544
1082517018017
1131aa4783a65
1213baa947b41
137a207422a5
143dcb1797d7
15222e45bc47
hex133665c5a1

82517018017 has 16 divisors (see below), whose sum is σ = 96510346240. Its totient is φ = 69075396432.

The previous prime is 82517017981. The next prime is 82517018047. The reversal of 82517018017 is 71081071528.

It is a de Polignac number, because none of the positive numbers 2k-82517018017 is a prime.

It is a super-2 number, since 2×825170180172 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82517018047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3849034 + ... + 3870412.

It is an arithmetic number, because the mean of its divisors is an integer number (6031896640).

Almost surely, 282517018017 is an apocalyptic number.

It is an amenable number.

82517018017 is a deficient number, since it is larger than the sum of its proper divisors (13993328223).

82517018017 is a wasteful number, since it uses less digits than its factorization.

82517018017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34252.

The product of its (nonzero) digits is 31360, while the sum is 40.

The spelling of 82517018017 in words is "eighty-two billion, five hundred seventeen million, eighteen thousand, seventeen".

Divisors: 1 7 43 301 12823 21379 89761 149653 551389 919297 3859723 6435079 274142917 1919000419 11788145431 82517018017