Base | Representation |
---|---|
bin | 110000111110… |
… | …1100010111100 |
3 | 1210022200102100 |
4 | 1201331202330 |
5 | 23033230220 |
6 | 2314225100 |
7 | 431163660 |
oct | 141754274 |
9 | 53280370 |
10 | 25680060 |
11 | 1354a89a |
12 | 8725190 |
13 | 5421903 |
14 | 35a68a0 |
15 | 23c3d90 |
hex | 187d8bc |
25680060 has 144 divisors (see below), whose sum is σ = 90417600. Its totient is φ = 5778432.
The previous prime is 25680049. The next prime is 25680079. The reversal of 25680060 is 6008652.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112026 + ... + 112254.
It is an arithmetic number, because the mean of its divisors is an integer number (627900).
Almost surely, 225680060 is an apocalyptic number.
25680060 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 25680060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45208800).
25680060 is an abundant number, since it is smaller than the sum of its proper divisors (64737540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25680060 is a wasteful number, since it uses less digits than its factorization.
25680060 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 340 (or 335 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 25680060 is about 5067.5497037523. The cubic root of 25680060 is about 295.0294330491.
The spelling of 25680060 in words is "twenty-five million, six hundred eighty thousand, sixty".
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