Base | Representation |
---|---|
bin | 101111111011… |
… | …0000100001010 |
3 | 1202021111012101 |
4 | 1133312010022 |
5 | 22413001010 |
6 | 2254304014 |
7 | 423363052 |
oct | 137660412 |
9 | 52244171 |
10 | 25125130 |
11 | 13200978 |
12 | 84b800a |
13 | 5289154 |
14 | 34a0562 |
15 | 231473a |
hex | 17f610a |
25125130 has 8 divisors (see below), whose sum is σ = 45225252. Its totient is φ = 10050048.
The previous prime is 25125083. The next prime is 25125151. The reversal of 25125130 is 3152152.
It can be written as a sum of positive squares in 2 ways, for example, as 23299929 + 1825201 = 4827^2 + 1351^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 25125098 and 25125107.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 1256247 + ... + 1256266.
Almost surely, 225125130 is an apocalyptic number.
25125130 is a deficient number, since it is larger than the sum of its proper divisors (20100122).
25125130 is a wasteful number, since it uses less digits than its factorization.
25125130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2512520.
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 25125130 is about 5012.4973815455. The cubic root of 25125130 is about 292.8888052790. Note that the first 4 decimals are identical.
Adding to 25125130 its reverse (3152152), we get a palindrome (28277282).
The spelling of 25125130 in words is "twenty-five million, one hundred twenty-five thousand, one hundred thirty".
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