Base | Representation |
---|---|
bin | 101111101110… |
… | …1101000101110 |
3 | 1202002101221110 |
4 | 1133131220232 |
5 | 22401300240 |
6 | 2252212450 |
7 | 422465250 |
oct | 137355056 |
9 | 52071843 |
10 | 25025070 |
11 | 13142784 |
12 | 846a126 |
13 | 5252745 |
14 | 3475cd0 |
15 | 22e4c80 |
hex | 17dda2e |
25025070 has 64 divisors (see below), whose sum is σ = 69050880. Its totient is φ = 5685888.
The previous prime is 25025069. The next prime is 25025083. The reversal of 25025070 is 7052052.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56269 + ... + 56711.
It is an arithmetic number, because the mean of its divisors is an integer number (1078920).
Almost surely, 225025070 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25025070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34525440).
25025070 is an abundant number, since it is smaller than the sum of its proper divisors (44025810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25025070 is a wasteful number, since it uses less digits than its factorization.
25025070 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 729.
The product of its (nonzero) digits is 700, while the sum is 21.
The square root of 25025070 is about 5002.5063718100. The cubic root of 25025070 is about 292.4994813345.
The spelling of 25025070 in words is "twenty-five million, twenty-five thousand, seventy".
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