Base | Representation |
---|---|
bin | 110000111110… |
… | …1100111110111 |
3 | 1210022200212000 |
4 | 1201331213313 |
5 | 23033233000 |
6 | 2314230343 |
7 | 431164620 |
oct | 141754767 |
9 | 53280760 |
10 | 25680375 |
11 | 13550056 |
12 | 87253b3 |
13 | 5421ab6 |
14 | 35a6a47 |
15 | 23c4000 |
hex | 187d9f7 |
25680375 has 64 divisors (see below), whose sum is σ = 54312960. Its totient is φ = 11728800.
The previous prime is 25680373. The next prime is 25680379. The reversal of 25680375 is 57308652.
It is not a de Polignac number, because 25680375 - 21 = 25680373 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25680373) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23082 + ... + 24168.
It is an arithmetic number, because the mean of its divisors is an integer number (848640).
Almost surely, 225680375 is an apocalyptic number.
25680375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
25680375 is an abundant number, since it is smaller than the sum of its proper divisors (28632585).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25680375 is a wasteful number, since it uses less digits than its factorization.
25680375 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1118 (or 1102 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 36.
The square root of 25680375 is about 5067.5807837665. The cubic root of 25680375 is about 295.0306393533.
The spelling of 25680375 in words is "twenty-five million, six hundred eighty thousand, three hundred seventy-five".
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