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131391829672 = 231271796611093
BaseRepresentation
bin111101001011110010…
…0000011011010101000
3110120010220220111222221
41322113210003122220
54123042302022142
6140205514523424
712331004060545
oct1722744033250
9416126814887
10131391829672
11507a5298394
122156aa36574
13c50c35249c
146506291bcc
153640142767
hex1e979036a8

131391829672 has 64 divisors (see below), whose sum is σ = 250293196800. Its totient is φ = 64657232640.

The previous prime is 131391829651. The next prime is 131391829687. The reversal of 131391829672 is 276928193131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120211558 + ... + 120212650.

It is an arithmetic number, because the mean of its divisors is an integer number (3910831200).

Almost surely, 2131391829672 is an apocalyptic number.

It is an amenable number.

131391829672 is a deficient number, since it is larger than the sum of its proper divisors (118901367128).

131391829672 is a wasteful number, since it uses less digits than its factorization.

131391829672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066 (or 2062 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The spelling of 131391829672 in words is "one hundred thirty-one billion, three hundred ninety-one million, eight hundred twenty-nine thousand, six hundred seventy-two".

Divisors: 1 2 4 8 127 179 254 358 508 661 716 1016 1093 1322 1432 2186 2644 4372 5288 8744 22733 45466 83947 90932 118319 138811 167894 181864 195647 236638 277622 335788 391294 473276 555244 671576 722473 782588 946552 1110488 1444946 1565176 2889892 5779784 15026513 24847169 30053026 49694338 60106052 91754071 99388676 120212104 129322667 183508142 198777352 258645334 367016284 517290668 734032568 1034581336 16423978709 32847957418 65695914836 131391829672