Base | Representation |
---|---|
bin | 110000000111… |
… | …0001001010000 |
3 | 1202110111111100 |
4 | 1200032021100 |
5 | 22424130020 |
6 | 2300344400 |
7 | 424253442 |
oct | 140161120 |
9 | 52414440 |
10 | 25223760 |
11 | 13268a91 |
12 | 8545100 |
13 | 52c2003 |
14 | 34c8492 |
15 | 2333a90 |
hex | 180e250 |
25223760 has 120 divisors (see below), whose sum is σ = 86438664. Its totient is φ = 6589440.
The previous prime is 25223741. The next prime is 25223771. The reversal of 25223760 is 6732252.
It can be written as a sum of positive squares in 4 ways, for example, as 7884864 + 17338896 = 2808^2 + 4164^2 .
It is a tau number, because it is divible by the number of its divisors (120).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37830 + ... + 38490.
Almost surely, 225223760 is an apocalyptic number.
25223760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25223760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43219332).
25223760 is an abundant number, since it is smaller than the sum of its proper divisors (61214904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25223760 is a wasteful number, since it uses less digits than its factorization.
25223760 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 733 (or 724 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 27.
The square root of 25223760 is about 5022.3261542835. The cubic root of 25223760 is about 293.2715549421.
The spelling of 25223760 in words is "twenty-five million, two hundred twenty-three thousand, seven hundred sixty".
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