Base | Representation |
---|---|
bin | 111101001111011000… |
… | …0011011010010001000 |
3 | 110120110022222220022201 |
4 | 1322132300123102020 |
5 | 4123314200414142 |
6 | 140225505325544 |
7 | 12334000631131 |
oct | 1723660332210 |
9 | 416408886281 |
10 | 131512513672 |
11 | 50857427031 |
12 | 215a33368b4 |
13 | c52b358837 |
14 | 6518308c88 |
15 | 364aa30ab7 |
hex | 1e9ec1b488 |
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".
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