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40688005071 = 3717113972003
BaseRepresentation
bin100101111001001100…
…011010111111001111
310220000121122211000210
4211321030122333033
51131312112130241
630405233053503
72640200223330
oct457114327717
9126017584023
1040688005071
111628a35547a
127a763b7293
133ab578205c
141d7db02287
1510d20da316
hex97931afcf

40688005071 has 16 divisors (see below), whose sum is σ = 65647874304. Its totient is φ = 21882624384.

The previous prime is 40688005049. The next prime is 40688005087. The reversal of 40688005071 is 17050088604.

It is not a de Polignac number, because 40688005071 - 214 = 40687988687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40688005271) 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, 56985645 + ... + 56986358.

It is an arithmetic number, because the mean of its divisors is an integer number (4102992144).

Almost surely, 240688005071 is an apocalyptic number.

40688005071 is a deficient number, since it is larger than the sum of its proper divisors (24959869233).

40688005071 is a wasteful number, since it uses less digits than its factorization.

40688005071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113972030.

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 40688005071 in words is "forty billion, six hundred eighty-eight million, five thousand, seventy-one".

Divisors: 1 3 7 17 21 51 119 357 113972003 341916009 797804021 1937524051 2393412063 5812572153 13562668357 40688005071