Base | Representation |
---|---|
bin | 1111100111111… |
… | …00010010111100 |
3 | 100010121101011121 |
4 | 13303330102330 |
5 | 232022304303 |
6 | 21001000324 |
7 | 3150651610 |
oct | 763742274 |
9 | 303541147 |
10 | 131056828 |
11 | 67a83a31 |
12 | 37a830a4 |
13 | 211c8826 |
14 | 13597340 |
15 | b78b9bd |
hex | 7cfc4bc |
131056828 has 24 divisors (see below), whose sum is σ = 268509024. Its totient is φ = 54796800.
The previous prime is 131056799. The next prime is 131056831. The reversal of 131056828 is 828650131.
It is a junction number, because it is equal to n+sod(n) for n = 131056793 and 131056802.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55933 + ... + 58228.
It is an arithmetic number, because the mean of its divisors is an integer number (11187876).
Almost surely, 2131056828 is an apocalyptic number.
It is an amenable number.
131056828 is an abundant number, since it is smaller than the sum of its proper divisors (137452196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131056828 is a wasteful number, since it uses less digits than its factorization.
131056828 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114213 (or 114211 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 34.
The square root of 131056828 is about 11448.0054157919. The cubic root of 131056828 is about 507.9487362245.
The spelling of 131056828 in words is "one hundred thirty-one million, fifty-six thousand, eight hundred twenty-eight".
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