Base | Representation |
---|---|
bin | 10111100010000111… |
… | …001011011010111000 |
3 | 2102012222220010222111 |
4 | 113202013023122320 |
5 | 403222200302310 |
6 | 15335204502104 |
7 | 1553113410343 |
oct | 274207133270 |
9 | 72188803874 |
10 | 25268369080 |
11 | a797376759 |
12 | 4a923aa934 |
13 | 24c900aba6 |
14 | 1319c8545a |
15 | 9cd53428a |
hex | 5e21cb6b8 |
25268369080 has 32 divisors (see below), whose sum is σ = 58687827840. Its totient is φ = 9781303680.
The previous prime is 25268369053. The next prime is 25268369081. The reversal of 25268369080 is 8096386252.
It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25268369081) 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, 10187619 + ... + 10190098.
It is an arithmetic number, because the mean of its divisors is an integer number (1833994620).
Almost surely, 225268369080 is an apocalyptic number.
25268369080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
25268369080 is an abundant number, since it is smaller than the sum of its proper divisors (33419458760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25268369080 is a wasteful number, since it uses less digits than its factorization.
25268369080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20377759 (or 20377755 counting only the distinct ones).
The product of its (nonzero) digits is 1244160, while the sum is 49.
The spelling of 25268369080 in words is "twenty-five billion, two hundred sixty-eight million, three hundred sixty-nine thousand, eighty".
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