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131512513672 = 23171915062847
BaseRepresentation
bin111101001111011000…
…0011011010010001000
3110120110022222220022201
41322132300123102020
54123314200414142
6140225505325544
712334000631131
oct1723660332210
9416408886281
10131512513672
1150857427031
12215a33368b4
13c52b358837
146518308c88
15364aa30ab7
hex1e9ec1b488

131512513672 has 32 divisors (see below), whose sum is σ = 262458040320. Its totient is φ = 61564207360.

The previous prime is 131512513669. The next prime is 131512513673. The reversal of 131512513672 is 276315215131.

It is not an unprimeable number, because it can be changed into a prime (131512513673) 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, 2505448 + ... + 2557399.

It is an arithmetic number, because the mean of its divisors is an integer number (8201813760).

Almost surely, 2131512513672 is an apocalyptic number.

It is an amenable number.

131512513672 is a deficient number, since it is larger than the sum of its proper divisors (130945526648).

131512513672 is a wasteful number, since it uses less digits than its factorization.

131512513672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063061 (or 5063057 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The spelling of 131512513672 in words is "one hundred thirty-one billion, five hundred twelve million, five hundred thirteen thousand, six hundred seventy-two".

Divisors: 1 2 4 8 17 34 68 136 191 382 764 1528 3247 6494 12988 25976 5062847 10125694 20251388 40502776 86068399 172136798 344273596 688547192 967003777 1934007554 3868015108 7736030216 16439064209 32878128418 65756256836 131512513672