Base | Representation |
---|---|
bin | 10111010011100110… |
… | …111000110000000100 |
3 | 2101121000222212212222 |
4 | 113103212320300010 |
5 | 402222401213410 |
6 | 15255113031512 |
7 | 1544100120446 |
oct | 272346706004 |
9 | 71530885788 |
10 | 25025022980 |
11 | a681a78181 |
12 | 4a249b5598 |
13 | 248a788009 |
14 | 12d581c496 |
15 | 9b6eb6955 |
hex | 5d39b8c04 |
25025022980 has 24 divisors (see below), whose sum is σ = 52557386112. Its totient is φ = 10009087712.
The previous prime is 25025022947. The next prime is 25025023021. The reversal of 25025022980 is 8922052052.
It is a self number, because there is not a number n which added to its sum of digits gives 25025022980.
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, 191339 + ... + 294381.
It is an arithmetic number, because the mean of its divisors is an integer number (2189891088).
Almost surely, 225025022980 is an apocalyptic number.
25025022980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
25025022980 is an abundant number, since it is smaller than the sum of its proper divisors (27532363132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25025022980 is a wasteful number, since it uses less digits than its factorization.
25025022980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115195 (or 115193 counting only the distinct ones).
The product of its (nonzero) digits is 28800, while the sum is 35.
The spelling of 25025022980 in words is "twenty-five billion, twenty-five million, twenty-two thousand, nine hundred eighty".
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