Base | Representation |
---|---|
bin | 101111111011… |
… | …1000011000000 |
3 | 1202021200201100 |
4 | 1133313003000 |
5 | 22413113102 |
6 | 2254334400 |
7 | 423410556 |
oct | 137670300 |
9 | 52250640 |
10 | 25129152 |
11 | 132039a4 |
12 | 84ba400 |
13 | 528ac29 |
14 | 34a1bd6 |
15 | 2315a1c |
hex | 17f70c0 |
25129152 has 42 divisors (see below), whose sum is σ = 72029828. Its totient is φ = 8376192.
The previous prime is 25129151. The next prime is 25129207. The reversal of 25129152 is 25192152.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (25129151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21238 + ... + 22389.
Almost surely, 225129152 is an apocalyptic number.
It is an amenable number.
25129152 is an abundant number, since it is smaller than the sum of its proper divisors (46900676).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25129152 is a wasteful number, since it uses less digits than its factorization.
25129152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43645 (or 43632 counting only the distinct ones).
The product of its digits is 1800, while the sum is 27.
The square root of 25129152 is about 5012.8985627080. The cubic root of 25129152 is about 292.9044328721.
It can be divided in two parts, 25129 and 152, that added together give a square (25281 = 1592).
The spelling of 25129152 in words is "twenty-five million, one hundred twenty-nine thousand, one hundred fifty-two".
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