Base | Representation |
---|---|
bin | 10111010010111001… |
… | …010100101111101100 |
3 | 2101120012112001212002 |
4 | 113102321110233230 |
5 | 402211322012040 |
6 | 15254005031432 |
7 | 1543563443426 |
oct | 272271245754 |
9 | 71505461762 |
10 | 25013079020 |
11 | a67625a536 |
12 | 4a209b5578 |
13 | 2488165697 |
14 | 12d3dcd816 |
15 | 9b5e07a15 |
hex | 5d2e54bec |
25013079020 has 24 divisors (see below), whose sum is σ = 52540023984. Its totient is φ = 10002839616.
The previous prime is 25013079019. The next prime is 25013079029. The reversal of 25013079020 is 2097031052.
It is not an unprimeable number, because it can be changed into a prime (25013079029) 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, 62519 + ... + 232238.
It is an arithmetic number, because the mean of its divisors is an integer number (2189167666).
Almost surely, 225013079020 is an apocalyptic number.
25013079020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
25013079020 is an abundant number, since it is smaller than the sum of its proper divisors (27526944964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25013079020 is a wasteful number, since it uses less digits than its factorization.
25013079020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 299009 (or 299007 counting only the distinct ones).
The product of its (nonzero) digits is 3780, while the sum is 29.
The spelling of 25013079020 in words is "twenty-five billion, thirteen million, seventy-nine thousand, twenty".
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