Base | Representation |
---|---|
bin | 101111111011… |
… | …1111101000101 |
3 | 1202021212211000 |
4 | 1133313331011 |
5 | 22413222434 |
6 | 2254403513 |
7 | 423424446 |
oct | 137677505 |
9 | 52255730 |
10 | 25132869 |
11 | 13206773 |
12 | 8500599 |
13 | 528c828 |
14 | 34a32cd |
15 | 2316b99 |
hex | 17f7f45 |
25132869 has 8 divisors (see below), whose sum is σ = 37233920. Its totient is φ = 16755228.
The previous prime is 25132867. The next prime is 25132889. The reversal of 25132869 is 96823152.
It is not a de Polignac number, because 25132869 - 21 = 25132867 is a prime.
It is a super-2 number, since 2×251328692 = 1263322208342322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25132867) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465397 + ... + 465450.
It is an arithmetic number, because the mean of its divisors is an integer number (4654240).
Almost surely, 225132869 is an apocalyptic number.
It is an amenable number.
25132869 is a deficient number, since it is larger than the sum of its proper divisors (12101051).
25132869 is an equidigital number, since it uses as much as digits as its factorization.
25132869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 930856 (or 930850 counting only the distinct ones).
The product of its digits is 25920, while the sum is 36.
The square root of 25132869 is about 5013.2692925874. The cubic root of 25132869 is about 292.9188738966.
The spelling of 25132869 in words is "twenty-five million, one hundred thirty-two thousand, eight hundred sixty-nine".
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