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131676474151369 = 7289211321632
BaseRepresentation
bin11101111100001001010001…
…011101111001000111001001
3122021020010222212220011200201
4131330021101131321013021
5114224341404340320434
61144015200453132201
736510211531652200
oct3574112135710711
9567203885804621
10131676474151369
1138a57751950504
121292794892a061
135862065cc6164
142473265258237
151035319835614
hex77c2517791c9

131676474151369 has 81 divisors (see below), whose sum is σ = 157262904560853. Its totient is φ = 109931221661184.

The previous prime is 131676474151363. The next prime is 131676474151379. The reversal of 131676474151369 is 963151474676131.

The square root of 131676474151369 is 11475037.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 91314747015625 + 40361727135744 = 9555875^2 + 6353088^2 .

It is not a de Polignac number, because 131676474151369 - 25 = 131676474151337 is a prime.

It is a super-2 number, since 2×1316764741513692 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131676474151369.

It is not an unprimeable number, because it can be changed into a prime (131676474151363) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 807831129682 + ... + 807831129844.

Almost surely, 2131676474151369 is an apocalyptic number.

131676474151369 is the 11475037-th square number.

131676474151369 is the 5737519-th centered octagonal number.

It is an amenable number.

131676474151369 is a deficient number, since it is larger than the sum of its proper divisors (25586430409484).

131676474151369 is an frugal number, since it uses more digits than its factorization.

131676474151369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 372 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 64.

The spelling of 131676474151369 in words is "one hundred thirty-one trillion, six hundred seventy-six billion, four hundred seventy-four million, one hundred fifty-one thousand, three hundred sixty-nine".

Divisors: 1 7 49 89 113 163 623 791 1141 4361 5537 7921 7987 10057 12769 14507 18419 26569 55447 70399 89383 101549 128933 185983 388129 492793 625681 710843 895073 902531 1136441 1291123 1301881 1639291 2081347 2364641 3002297 6265511 7955087 9037861 11475037 14569429 16552487 21016079 43858577 55685609 63265027 80325259 101143249 101986003 115867409 145896899 147112553 185239883 210453049 267204433 339259561 708002743 1021278293 1296679181 1473171343 1870431031 2374816927 4956019201 7148948051 9076754267 10312199401 13093017217 16486349587 16623718489 23781194537 30194100929 115404447109 166468361759 211358706503 807831129763 1165278532313 1479510945521 2687274982681 18810924878767 131676474151369