Base | Representation |
---|---|
bin | 1111101111000… |
… | …01000100010100 |
3 | 100012100222120002 |
4 | 13313201010110 |
5 | 232242301001 |
6 | 21033030432 |
7 | 3161633540 |
oct | 767410424 |
9 | 305328502 |
10 | 131993876 |
11 | 68563a53 |
12 | 38255418 |
13 | 214661b1 |
14 | 1375ca20 |
15 | b8c446b |
hex | 7de1114 |
131993876 has 12 divisors (see below), whose sum is σ = 263987808. Its totient is φ = 56568792.
The previous prime is 131993867. The next prime is 131993887. The reversal of 131993876 is 678399131.
It is a happy number.
131993876 is an admirable number.
It is a self number, because there is not a number n which added to its sum of digits gives 131993876.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357006 + ... + 2357061.
It is an arithmetic number, because the mean of its divisors is an integer number (21998984).
Almost surely, 2131993876 is an apocalyptic number.
It is an amenable number.
131993876 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131993876 is a wasteful number, since it uses less digits than its factorization.
131993876 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4714078 (or 4714076 counting only the distinct ones).
The product of its digits is 244944, while the sum is 47.
The square root of 131993876 is about 11488.8587770936. The cubic root of 131993876 is about 509.1564627977.
The spelling of 131993876 in words is "one hundred thirty-one million, nine hundred ninety-three thousand, eight hundred seventy-six".
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