Base | Representation |
---|---|
bin | 1111101100111… |
… | …01111100000000 |
3 | 100011212000101020 |
4 | 13312131330000 |
5 | 232210001122 |
6 | 21023105440 |
7 | 3156410103 |
oct | 766357400 |
9 | 304760336 |
10 | 131718912 |
11 | 68396406 |
12 | 38142280 |
13 | 2139acb0 |
14 | 136ca73a |
15 | b86cc5c |
hex | 7d9df00 |
131718912 has 144 divisors (see below), whose sum is σ = 384599040. Its totient is φ = 39776256.
The previous prime is 131718911. The next prime is 131718929. The reversal of 131718912 is 219817131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131718911) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788653 + ... + 788819.
Almost surely, 2131718912 is an apocalyptic number.
131718912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131718912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192299520).
131718912 is an abundant number, since it is smaller than the sum of its proper divisors (252880128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131718912 is a wasteful number, since it uses less digits than its factorization.
131718912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 278 (or 264 counting only the distinct ones).
The product of its digits is 3024, while the sum is 33.
The square root of 131718912 is about 11476.8859888038. The cubic root of 131718912 is about 508.8026660198.
The spelling of 131718912 in words is "one hundred thirty-one million, seven hundred eighteen thousand, nine hundred twelve".
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