Base | Representation |
---|---|
bin | 111101001111111100… |
… | …0000100000101101000 |
3 | 110120111122022222202120 |
4 | 1322133320010011220 |
5 | 4123334002334112 |
6 | 140231420031240 |
7 | 12334316354346 |
oct | 1723770040550 |
9 | 416448288676 |
10 | 131531293032 |
11 | 50866a93267 |
12 | 215a9692520 |
13 | c532202499 |
14 | 651a9d6996 |
15 | 364c4dee8c |
hex | 1e9fe04168 |
131531293032 has 32 divisors (see below), whose sum is σ = 331338379680. Its totient is φ = 43509078080.
The previous prime is 131531293013. The next prime is 131531293037. The reversal of 131531293032 is 230392135131.
It is a junction number, because it is equal to n+sod(n) for n = 131531292984 and 131531293002.
It is not an unprimeable number, because it can be changed into a prime (131531293037) 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, 20914683 + ... + 20920970.
It is an arithmetic number, because the mean of its divisors is an integer number (10354324365).
Almost surely, 2131531293032 is an apocalyptic number.
131531293032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131531293032 is an abundant number, since it is smaller than the sum of its proper divisors (199807086648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131531293032 is a wasteful number, since it uses less digits than its factorization.
131531293032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41835793 (or 41835789 counting only the distinct ones).
The product of its (nonzero) digits is 14580, while the sum is 33.
The spelling of 131531293032 in words is "one hundred thirty-one billion, five hundred thirty-one million, two hundred ninety-three thousand, thirty-two".
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