Base | Representation |
---|---|
bin | 101111111110… |
… | …1000100100100 |
3 | 1202022221120021 |
4 | 1133331010210 |
5 | 22414410303 |
6 | 2255044524 |
7 | 423542530 |
oct | 137750444 |
9 | 52287507 |
10 | 25153828 |
11 | 13220497 |
12 | 8510744 |
13 | 529922b |
14 | 34aabc0 |
15 | 231cebd |
hex | 17fd124 |
25153828 has 24 divisors (see below), whose sum is σ = 51537024. Its totient is φ = 10516800.
The previous prime is 25153801. The next prime is 25153841. The reversal of 25153828 is 82835152.
It is a junction number, because it is equal to n+sod(n) for n = 25153793 and 25153802.
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, 9808 + ... + 12103.
It is an arithmetic number, because the mean of its divisors is an integer number (2147376).
Almost surely, 225153828 is an apocalyptic number.
25153828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
25153828 is an abundant number, since it is smaller than the sum of its proper divisors (26383196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25153828 is a wasteful number, since it uses less digits than its factorization.
25153828 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21963 (or 21961 counting only the distinct ones).
The product of its digits is 19200, while the sum is 34.
The square root of 25153828 is about 5015.3592094685. The cubic root of 25153828 is about 293.0002756776. Note that the first 3 decimals are identical.
The spelling of 25153828 in words is "twenty-five million, one hundred fifty-three thousand, eight hundred twenty-eight".
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