Base | Representation |
---|---|
bin | 10011001101000011… |
… | …101010111000000000 |
3 | 1222020001110200112121 |
4 | 103031003222320000 |
5 | 314212230114022 |
6 | 13250041334024 |
7 | 1326662321020 |
oct | 231503527000 |
9 | 58201420477 |
10 | 20620160512 |
11 | 88215a7876 |
12 | 3bb5797314 |
13 | 1c38011a13 |
14 | dd87d9a80 |
15 | 80a41c2c7 |
hex | 4cd0eae00 |
20620160512 has 80 divisors (see below), whose sum is σ = 47283125472. Its totient is φ = 8800174080.
The previous prime is 20620160459. The next prime is 20620160521. The reversal of 20620160512 is 21506102602.
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, 851808 + ... + 875680.
Almost surely, 220620160512 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20620160512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23641562736).
20620160512 is an abundant number, since it is smaller than the sum of its proper divisors (26662964960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20620160512 is an equidigital number, since it uses as much as digits as its factorization.
20620160512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24139 (or 24123 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 25.
The spelling of 20620160512 in words is "twenty billion, six hundred twenty million, one hundred sixty thousand, five hundred twelve".
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