Base | Representation |
---|---|
bin | 1111101011101… |
… | …00110100001010 |
3 | 100011112110022210 |
4 | 13311310310022 |
5 | 232134103344 |
6 | 21015325550 |
7 | 3155106036 |
oct | 765646412 |
9 | 304473283 |
10 | 131550474 |
11 | 68290900 |
12 | 380808b6 |
13 | 2133c423 |
14 | 136851c6 |
15 | b837db9 |
hex | 7d74d0a |
131550474 has 24 divisors (see below), whose sum is σ = 289195200. Its totient is φ = 39863560.
The previous prime is 131550473. The next prime is 131550479. The reversal of 131550474 is 474055131.
It is not an unprimeable number, because it can be changed into a prime (131550473) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89874 + ... + 91325.
It is an arithmetic number, because the mean of its divisors is an integer number (12049800).
Almost surely, 2131550474 is an apocalyptic number.
131550474 is an abundant number, since it is smaller than the sum of its proper divisors (157644726).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131550474 is a wasteful number, since it uses less digits than its factorization.
131550474 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 181226 (or 181215 counting only the distinct ones).
The product of its (nonzero) digits is 8400, while the sum is 30.
The square root of 131550474 is about 11469.5455010214. The cubic root of 131550474 is about 508.5856932277.
The spelling of 131550474 in words is "one hundred thirty-one million, five hundred fifty thousand, four hundred seventy-four".
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