Base | Representation |
---|---|
bin | 100100000010000010… |
… | …000110011001110100 |
3 | 10200212021211012210120 |
4 | 210002002012121310 |
5 | 1113213313414422 |
6 | 25435015251540 |
7 | 2536513315134 |
oct | 440202063164 |
9 | 120767735716 |
10 | 38688810612 |
11 | 15453909051 |
12 | 75b8979bb0 |
13 | 385752a55a |
14 | 1c303b6ac4 |
15 | 101683645c |
hex | 902086674 |
38688810612 has 24 divisors (see below), whose sum is σ = 90701735712. Its totient is φ = 12835149600.
The previous prime is 38688810599. The next prime is 38688810649. The reversal of 38688810612 is 21601888683.
It is a congruent number.
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, 7637439 + ... + 7642502.
It is an arithmetic number, because the mean of its divisors is an integer number (3779238988).
Almost surely, 238688810612 is an apocalyptic number.
It is an amenable number.
38688810612 is an abundant number, since it is smaller than the sum of its proper divisors (52012925100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38688810612 is a wasteful number, since it uses less digits than its factorization.
38688810612 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15280159 (or 15280157 counting only the distinct ones).
The product of its (nonzero) digits is 884736, while the sum is 51.
The spelling of 38688810612 in words is "thirty-eight billion, six hundred eighty-eight million, eight hundred ten thousand, six hundred twelve".
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