Base | Representation |
---|---|
bin | 10011010101011001… |
… | …111010000101001000 |
3 | 1222120210222211011001 |
4 | 103111121322011020 |
5 | 320004103121223 |
6 | 13312003144344 |
7 | 1333312565563 |
oct | 232531720510 |
9 | 58523884131 |
10 | 20760207688 |
11 | 8893661340 |
12 | 40346750b4 |
13 | 1c5b03767c |
14 | 100d2534da |
15 | 8178829ad |
hex | 4d567a148 |
20760207688 has 32 divisors (see below), whose sum is σ = 42470840160. Its totient is φ = 9434951680.
The previous prime is 20760207683. The next prime is 20760207719. The reversal of 20760207688 is 88670206702.
It is not an unprimeable number, because it can be changed into a prime (20760207683) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683595 + ... + 713317.
It is an arithmetic number, because the mean of its divisors is an integer number (1327213755).
Almost surely, 220760207688 is an apocalyptic number.
It is an amenable number.
20760207688 is an abundant number, since it is smaller than the sum of its proper divisors (21710632472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20760207688 is a wasteful number, since it uses less digits than its factorization.
20760207688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37677 (or 37673 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 46.
The spelling of 20760207688 in words is "twenty billion, seven hundred sixty million, two hundred seven thousand, six hundred eighty-eight".
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