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131259061372 = 2247978418737
BaseRepresentation
bin111101000111110100…
…1100101010001111100
3110112210200002012010111
41322033221211101330
54122304304430442
6140144413115404
712324502420135
oct1721751452174
9415720065114
10131259061372
115073735561a
1221532488b64
13c4ba9a796a
1464d27b0c8c
153633668b17
hex1e8fa6547c

131259061372 has 24 divisors (see below), whose sum is σ = 230238610560. Its totient is φ = 65476669440.

The previous prime is 131259061343. The next prime is 131259061393. The reversal of 131259061372 is 273160952131.

It is a congruent number.

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, 15018988 + ... + 15027724.

It is an arithmetic number, because the mean of its divisors is an integer number (9593275440).

Almost surely, 2131259061372 is an apocalyptic number.

It is an amenable number.

131259061372 is a deficient number, since it is larger than the sum of its proper divisors (98979549188).

131259061372 is a wasteful number, since it uses less digits than its factorization.

131259061372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17061 (or 17059 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 131259061372 in words is "one hundred thirty-one billion, two hundred fifty-nine million, sixty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 479 958 1916 7841 8737 15682 17474 31364 34948 3755839 4185023 7511678 8370046 15023356 16740092 68506817 137013634 274027268 32814765343 65629530686 131259061372