Base | Representation |
---|---|
bin | 101111101110… |
… | …1111101111100 |
3 | 1202002110210202 |
4 | 1133131331330 |
5 | 22401321203 |
6 | 2252223032 |
7 | 422502230 |
oct | 137357574 |
9 | 52073722 |
10 | 25026428 |
11 | 131437a9 |
12 | 846aa78 |
13 | 525324b |
14 | 34765c0 |
15 | 22e5388 |
hex | 17ddf7c |
25026428 has 24 divisors (see below), whose sum is σ = 50380512. Its totient is φ = 10655424.
The previous prime is 25026427. The next prime is 25026433. The reversal of 25026428 is 82462052.
It is a self number, because there is not a number n which added to its sum of digits gives 25026428.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25026427) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550 + ... + 7242.
It is an arithmetic number, because the mean of its divisors is an integer number (2099188).
Almost surely, 225026428 is an apocalyptic number.
25026428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
25026428 is an abundant number, since it is smaller than the sum of its proper divisors (25354084).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25026428 is a wasteful number, since it uses less digits than its factorization.
25026428 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5861 (or 5859 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 29.
The square root of 25026428 is about 5002.6421019297. The cubic root of 25026428 is about 292.5047721237.
The spelling of 25026428 in words is "twenty-five million, twenty-six thousand, four hundred twenty-eight".
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