Base | Representation |
---|---|
bin | 1111101011111… |
… | …00100100110000 |
3 | 100011121001220220 |
4 | 13311330210300 |
5 | 232141113011 |
6 | 21020133040 |
7 | 3155300511 |
oct | 765744460 |
9 | 304531826 |
10 | 131582256 |
11 | 68302773 |
12 | 38097180 |
13 | 21350a30 |
14 | 13692a08 |
15 | b842506 |
hex | 7d7c930 |
131582256 has 40 divisors (see below), whose sum is σ = 366070320. Its totient is φ = 40486656.
The previous prime is 131582221. The next prime is 131582263. The reversal of 131582256 is 652285131.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104811 + ... + 106058.
It is an arithmetic number, because the mean of its divisors is an integer number (9151758).
Almost surely, 2131582256 is an apocalyptic number.
131582256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
131582256 is an abundant number, since it is smaller than the sum of its proper divisors (234488064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131582256 is a wasteful number, since it uses less digits than its factorization.
131582256 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 210893 (or 210887 counting only the distinct ones).
The product of its digits is 14400, while the sum is 33.
The square root of 131582256 is about 11470.9309125284. The cubic root of 131582256 is about 508.6266472648.
The spelling of 131582256 in words is "one hundred thirty-one million, five hundred eighty-two thousand, two hundred fifty-six".
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