Base | Representation |
---|---|
bin | 101111101101… |
… | …0101100000000 |
3 | 1202001210101010 |
4 | 1133122230000 |
5 | 22400403432 |
6 | 2252040520 |
7 | 422415114 |
oct | 137325400 |
9 | 52053333 |
10 | 25012992 |
11 | 131346a4 |
12 | 8463140 |
13 | 524a0b4 |
14 | 3471744 |
15 | 22e13cc |
hex | 17dab00 |
25012992 has 36 divisors (see below), whose sum is σ = 66573080. Its totient is φ = 8337408.
The previous prime is 25012973. The next prime is 25012997. The reversal of 25012992 is 29921052.
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25012997) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15517 + ... + 17052.
Almost surely, 225012992 is an apocalyptic number.
It is an amenable number.
25012992 is an abundant number, since it is smaller than the sum of its proper divisors (41560088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25012992 is an equidigital number, since it uses as much as digits as its factorization.
25012992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32588 (or 32574 counting only the distinct ones).
The product of its (nonzero) digits is 3240, while the sum is 30.
The square root of 25012992 is about 5001.2990312518. The cubic root of 25012992 is about 292.4524168342.
The spelling of 25012992 in words is "twenty-five million, twelve thousand, nine hundred ninety-two".
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