Base | Representation |
---|---|
bin | 101111111001… |
… | …0111101000011 |
3 | 1202020211201102 |
4 | 1133302331003 |
5 | 22412044022 |
6 | 2254125015 |
7 | 423310646 |
oct | 137627503 |
9 | 52224642 |
10 | 25112387 |
11 | 131a2343 |
12 | 84b076b |
13 | 5283401 |
14 | 3499a5d |
15 | 2310a92 |
hex | 17f2f43 |
25112387 has 8 divisors (see below), whose sum is σ = 26526720. Its totient is φ = 23735880.
The previous prime is 25112363. The next prime is 25112393. The reversal of 25112387 is 78321152.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 25112387 - 214 = 25096003 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (25112287) 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, 8087 + ... + 10752.
It is an arithmetic number, because the mean of its divisors is an integer number (3315840).
Almost surely, 225112387 is an apocalyptic number.
25112387 is a deficient number, since it is larger than the sum of its proper divisors (1414333).
25112387 is a wasteful number, since it uses less digits than its factorization.
25112387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18913.
The product of its digits is 3360, while the sum is 29.
The square root of 25112387 is about 5011.2260974736. The cubic root of 25112387 is about 292.8392809819.
The spelling of 25112387 in words is "twenty-five million, one hundred twelve thousand, three hundred eighty-seven".
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