Base | Representation |
---|---|
bin | 101111111001… |
… | …0000111111100 |
3 | 1202020200001112 |
4 | 1133302013330 |
5 | 22411441423 |
6 | 2254101152 |
7 | 423265022 |
oct | 137620774 |
9 | 52220045 |
10 | 25108988 |
11 | 1319a833 |
12 | 84aa7b8 |
13 | 52819b8 |
14 | 3498712 |
15 | 230ea78 |
hex | 17f21fc |
25108988 has 12 divisors (see below), whose sum is σ = 43996680. Its totient is φ = 12538512.
The previous prime is 25108981. The next prime is 25108991. The reversal of 25108988 is 88980152.
It is a super-2 number, since 2×251089882 = 1260922556768288, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25108981) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 7086.
It is an arithmetic number, because the mean of its divisors is an integer number (3666390).
Almost surely, 225108988 is an apocalyptic number.
It is an amenable number.
25108988 is a deficient number, since it is larger than the sum of its proper divisors (18887692).
25108988 is a wasteful number, since it uses less digits than its factorization.
25108988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7996 (or 7994 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 41.
The square root of 25108988 is about 5010.8869474375. The cubic root of 25108988 is about 292.8260683042.
The spelling of 25108988 in words is "twenty-five million, one hundred eight thousand, nine hundred eighty-eight".
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