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131240237612 = 22113196217183
BaseRepresentation
bin111101000111010000…
…1110001101000101100
3110112202100122211210012
41322032201301220230
54122240000100422
6140142501432352
712324153420311
oct1721641615054
9415670584705
10131240237612
1150727768aa0
122152810b6b8
13c4b6b16a43
1464d00b0d08
153631b9b4e2
hex1e8e871a2c

131240237612 has 24 divisors (see below), whose sum is σ = 258631790592. Its totient is φ = 57730309200.

The previous prime is 131240237603. The next prime is 131240237617. The reversal of 131240237612 is 216732042131.

It is not an unprimeable number, because it can be changed into a prime (131240237617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48107228 + ... + 48109955.

It is an arithmetic number, because the mean of its divisors is an integer number (10776324608).

Almost surely, 2131240237612 is an apocalyptic number.

It is an amenable number.

131240237612 is a deficient number, since it is larger than the sum of its proper divisors (127391552980).

131240237612 is a wasteful number, since it uses less digits than its factorization.

131240237612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96217229 (or 96217227 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 131240237612 its reverse (216732042131), we get a palindrome (347972279743).

The spelling of 131240237612 in words is "one hundred thirty-one billion, two hundred forty million, two hundred thirty-seven thousand, six hundred twelve".

Divisors: 1 2 4 11 22 31 44 62 124 341 682 1364 96217183 192434366 384868732 1058389013 2116778026 2982732673 4233556052 5965465346 11930930692 32810059403 65620118806 131240237612