Base | Representation |
---|---|
bin | 101111111011… |
… | …0000111100001 |
3 | 1202021111111100 |
4 | 1133312013201 |
5 | 22413002340 |
6 | 2254305013 |
7 | 423363510 |
oct | 137660741 |
9 | 52244440 |
10 | 25125345 |
11 | 13201053 |
12 | 84b8169 |
13 | 528928b |
14 | 34a0677 |
15 | 2314830 |
hex | 17f61e1 |
25125345 has 72 divisors (see below), whose sum is σ = 52049088. Its totient is φ = 10981440.
The previous prime is 25125341. The next prime is 25125377. The reversal of 25125345 is 54352152.
It is a happy number.
It is not a de Polignac number, because 25125345 - 22 = 25125341 is a prime.
It is a super-2 number, since 2×251253452 = 1262565922738050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (25125341) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 302674 + ... + 302756.
It is an arithmetic number, because the mean of its divisors is an integer number (722904).
Almost surely, 225125345 is an apocalyptic number.
It is an amenable number.
25125345 is an abundant number, since it is smaller than the sum of its proper divisors (26923743).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25125345 is a wasteful number, since it uses less digits than its factorization.
25125345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163 (or 129 counting only the distinct ones).
The product of its digits is 6000, while the sum is 27.
The square root of 25125345 is about 5012.5188278948. The cubic root of 25125345 is about 292.8896407097.
Adding to 25125345 its reverse (54352152), we get a palindrome (79477497).
The spelling of 25125345 in words is "twenty-five million, one hundred twenty-five thousand, three hundred forty-five".
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