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131309799472 = 2429992736533
BaseRepresentation
bin111101001001010101…
…1001000100000110000
3110112221012112221201101
41322102223020200300
54122410302040342
6140153424414144
712325656610465
oct1722253104060
9415835487641
10131309799472
1150762a5a935
1221547477354
13c4c8360cc7
1464d941b66c
153637d3c3b7
hex1e92ac8830

131309799472 has 20 divisors (see below), whose sum is σ = 254497662000. Its totient is φ = 65632983488.

The previous prime is 131309799437. The next prime is 131309799499. The reversal of 131309799472 is 274997903131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320283 + ... + 1416250.

It is an arithmetic number, because the mean of its divisors is an integer number (12724883100).

Almost surely, 2131309799472 is an apocalyptic number.

It is an amenable number.

131309799472 is a deficient number, since it is larger than the sum of its proper divisors (123187862528).

131309799472 is a wasteful number, since it uses less digits than its factorization.

131309799472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739540 (or 2739534 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 131309799472 in words is "one hundred thirty-one billion, three hundred nine million, seven hundred ninety-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 2999 5998 11996 23992 47984 2736533 5473066 10946132 21892264 43784528 8206862467 16413724934 32827449868 65654899736 131309799472