Base | Representation |
---|---|
bin | 10011010111010101… |
… | …011010011000000000 |
3 | 1222200001220200122212 |
4 | 103113111122120000 |
5 | 320040400134210 |
6 | 13315121121252 |
7 | 1334155021331 |
oct | 232725323000 |
9 | 58601820585 |
10 | 20792583680 |
11 | 88aa964960 |
12 | 4043489228 |
13 | 1c64961c6b |
14 | 1013680288 |
15 | 81a62a805 |
hex | 4d755a600 |
20792583680 has 80 divisors (see below), whose sum is σ = 54385675344. Its totient is φ = 7560929280.
The previous prime is 20792583673. The next prime is 20792583689. The reversal of 20792583680 is 8638529702.
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20792583689) 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, 341027 + ... + 397346.
Almost surely, 220792583680 is an apocalyptic number.
20792583680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20792583680 is an abundant number, since it is smaller than the sum of its proper divisors (33593091664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20792583680 is an equidigital number, since it uses as much as digits as its factorization.
20792583680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 738407 (or 738391 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 50.
The spelling of 20792583680 in words is "twenty billion, seven hundred ninety-two million, five hundred eighty-three thousand, six hundred eighty".
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