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207271131976 = 23172237681293
BaseRepresentation
bin1100000100001001010…
…0100111101101001000
3201211000002012110102201
43001002110213231020
511343442402210401
6235115151405544
720655241360336
oct3010224475510
9654002173381
10207271131976
117a9a3172287
12342068238b4
131671285622c
14a063a58b56
1555d1998b01
hex3042527b48

207271131976 has 32 divisors (see below), whose sum is σ = 411678712440. Its totient is φ = 97495610368.

The previous prime is 207271131967. The next prime is 207271132007. The reversal of 207271131976 is 679131172702.

It can be written as a sum of positive squares in 4 ways, for example, as 184943002500 + 22328129476 = 430050^2 + 149426^2 .

It is a super-2 number, since 2×2072711319762 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36415 + ... + 644878.

Almost surely, 2207271131976 is an apocalyptic number.

It is an amenable number.

207271131976 is a deficient number, since it is larger than the sum of its proper divisors (204407580464).

207271131976 is a wasteful number, since it uses less digits than its factorization.

207271131976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683553 (or 683549 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 46.

The spelling of 207271131976 in words is "two hundred seven billion, two hundred seventy-one million, one hundred thirty-one thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 17 34 68 136 2237 4474 8948 17896 38029 76058 152116 304232 681293 1362586 2725172 5450344 11581981 23163962 46327924 92655848 1524052441 3048104882 6096209764 12192419528 25908891497 51817782994 103635565988 207271131976