Base | Representation |
---|---|
bin | 10011010010001111… |
… | …001000010001001010 |
3 | 1222110002222011021220 |
4 | 103102033020101022 |
5 | 314402001104240 |
6 | 13302423542510 |
7 | 1332066011553 |
oct | 232217102112 |
9 | 58402864256 |
10 | 20707050570 |
11 | 8866654638 |
12 | 401a8baa36 |
13 | 1c5001525b |
14 | 100617732a |
15 | 812d825d0 |
hex | 4d23c844a |
20707050570 has 64 divisors (see below), whose sum is σ = 49959535104. Its totient is φ = 5492773440.
The previous prime is 20707050523. The next prime is 20707050577. The reversal of 20707050570 is 7505070702.
It is not an unprimeable number, because it can be changed into a prime (20707050577) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5796885 + ... + 5800455.
It is an arithmetic number, because the mean of its divisors is an integer number (780617736).
Almost surely, 220707050570 is an apocalyptic number.
20707050570 is an abundant number, since it is smaller than the sum of its proper divisors (29252484534).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20707050570 is a wasteful number, since it uses less digits than its factorization.
20707050570 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4547.
The product of its (nonzero) digits is 17150, while the sum is 33.
The spelling of 20707050570 in words is "twenty billion, seven hundred seven million, fifty thousand, five hundred seventy".
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