Base | Representation |
---|---|
bin | 101111101011… |
… | …1101110101000 |
3 | 1202001011202020 |
4 | 1133113232220 |
5 | 22400011442 |
6 | 2251504440 |
7 | 422334561 |
oct | 137275650 |
9 | 52034666 |
10 | 25000872 |
11 | 13126586 |
12 | 8458120 |
13 | 5244720 |
14 | 346b168 |
15 | 22dc9ec |
hex | 17d7ba8 |
25000872 has 64 divisors (see below), whose sum is σ = 67798080. Its totient is φ = 7636992.
The previous prime is 25000867. The next prime is 25000873. The reversal of 25000872 is 27800052.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (25000873) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70648 + ... + 71000.
It is an arithmetic number, because the mean of its divisors is an integer number (1059345).
Almost surely, 225000872 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25000872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33899040).
25000872 is an abundant number, since it is smaller than the sum of its proper divisors (42797208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25000872 is a wasteful number, since it uses less digits than its factorization.
25000872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 602 (or 598 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 24.
The square root of 25000872 is about 5000.0871992396. The cubic root of 25000872 is about 292.4051734397.
The spelling of 25000872 in words is "twenty-five million, eight hundred seventy-two", and thus it is an aban number.
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