Base | Representation |
---|---|
bin | 1111011110010110001… |
… | …00111100010000101100 |
3 | 1212211101020212022200100 |
4 | 13233023010330100230 |
5 | 32202344120011120 |
6 | 1044130520031100 |
7 | 53261503560060 |
oct | 7571304742054 |
9 | 1784336768610 |
10 | 531688047660 |
11 | 195540050740 |
12 | 87065302490 |
13 | 3b1a4166033 |
14 | 1ba3b921aa0 |
15 | dc6ca4e490 |
hex | 7bcb13c42c |
531688047660 has 144 divisors (see below), whose sum is σ = 2010747578112. Its totient is φ = 110480630400.
The previous prime is 531688047647. The next prime is 531688047713. The reversal of 531688047660 is 66740886135.
531688047660 is a `hidden beast` number, since 5 + 3 + 168 + 8 + 0 + 476 + 6 + 0 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 531688047597 and 531688047606.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19166806 + ... + 19194525.
It is an arithmetic number, because the mean of its divisors is an integer number (13963524848).
Almost surely, 2531688047660 is an apocalyptic number.
It is an amenable number.
531688047660 is an abundant number, since it is smaller than the sum of its proper divisors (1479059530452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
531688047660 is a wasteful number, since it uses less digits than its factorization.
531688047660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38361364 (or 38361359 counting only the distinct ones).
The product of its (nonzero) digits is 5806080, while the sum is 54.
The spelling of 531688047660 in words is "five hundred thirty-one billion, six hundred eighty-eight million, forty-seven thousand, six hundred sixty".
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