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131056452612 = 223220831747699
BaseRepresentation
bin111101000001110010…
…0101100010000000100
3110112021112211121011100
41322003210230100010
54121400422440422
6140112334340100
712316462316061
oct1720344542004
9415245747140
10131056452612
1150642a50668
122149665a630
13c487a19117
1464b390dc68
1536209967ac
hex1e8392c404

131056452612 has 36 divisors (see below), whose sum is σ = 331440818800. Its totient is φ = 43664486832.

The previous prime is 131056452601. The next prime is 131056452617. The reversal of 131056452612 is 216254650131.

131056452612 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 5 + 645 + 2 + 6 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (131056452617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 798862 + ... + 948837.

Almost surely, 2131056452612 is an apocalyptic number.

131056452612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131056452612 is an abundant number, since it is smaller than the sum of its proper divisors (200384366188).

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

131056452612 is a wasteful number, since it uses less digits than its factorization.

131056452612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749792 (or 1749787 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 131056452612 in words is "one hundred thirty-one billion, fifty-six million, four hundred fifty-two thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 2083 4166 6249 8332 12498 18747 24996 37494 74988 1747699 3495398 5243097 6990796 10486194 15729291 20972388 31458582 62917164 3640457017 7280914034 10921371051 14561828068 21842742102 32764113153 43685484204 65528226306 131056452612