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131302243332 = 2232131991409851
BaseRepresentation
bin111101001001000111…
…0010011110000000100
3110112220200100001122100
41322102032103300010
54122401333241312
6140152554432100
712325535440101
oct1722216236004
9415820301570
10131302243332
1150759769897
1221544a32630
13c4c6916910
1464d8411aa8
1536373485dc
hex1e92393c04

131302243332 has 72 divisors (see below), whose sum is σ = 359230289600. Its totient is φ = 40197643200.

The previous prime is 131302243321. The next prime is 131302243339. The reversal of 131302243332 is 233342203131.

131302243332 is a `hidden beast` number, since 1 + 3 + 1 + 302 + 24 + 3 + 332 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 131302243296 and 131302243305.

It is not an unprimeable number, because it can be changed into a prime (131302243339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 611794 + ... + 798057.

Almost surely, 2131302243332 is an apocalyptic number.

131302243332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131302243332 is an abundant number, since it is smaller than the sum of its proper divisors (227928046268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131302243332 is a wasteful number, since it uses less digits than its factorization.

131302243332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410073 (or 1410068 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 131302243332 its reverse (233342203131), we get a palindrome (364644446463).

The spelling of 131302243332 in words is "one hundred thirty-one billion, three hundred two million, two hundred forty-three thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 199 234 398 468 597 796 1194 1791 2388 2587 3582 5174 7164 7761 10348 15522 23283 31044 46566 93132 1409851 2819702 4229553 5639404 8459106 12688659 16918212 18328063 25377318 36656126 50754636 54984189 73312252 109968378 164952567 219936756 280560349 329905134 561120698 659810268 841681047 1122241396 1683362094 2525043141 3366724188 3647284537 5050086282 7294569074 10100172564 10941853611 14589138148 21883707222 32825560833 43767414444 65651121666 131302243332