Base | Representation |
---|---|
bin | 1111100111111… |
… | …01011101111000 |
3 | 100010121121202020 |
4 | 13303331131320 |
5 | 232022432444 |
6 | 21001034440 |
7 | 3151001601 |
oct | 763753570 |
9 | 303547666 |
10 | 131061624 |
11 | 67a875a1 |
12 | 37a85a20 |
13 | 211caa75 |
14 | 13598da8 |
15 | b78d119 |
hex | 7cfd778 |
131061624 has 16 divisors (see below), whose sum is σ = 327654120. Its totient is φ = 43687200.
The previous prime is 131061607. The next prime is 131061631. The reversal of 131061624 is 426160131.
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5460901 = 131061624 / (1 + 3 + 1 + 0 + 6 + 1 + 6 + 2 + 4).
It is a junction number, because it is equal to n+sod(n) for n = 131061594 and 131061603.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2730427 + ... + 2730474.
Almost surely, 2131061624 is an apocalyptic number.
It is an amenable number.
131061624 is an abundant number, since it is smaller than the sum of its proper divisors (196592496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131061624 is a wasteful number, since it uses less digits than its factorization.
131061624 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5460910 (or 5460906 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 24.
The square root of 131061624 is about 11448.2148826793. The cubic root of 131061624 is about 507.9549322451.
The spelling of 131061624 in words is "one hundred thirty-one million, sixty-one thousand, six hundred twenty-four".
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