Base | Representation |
---|---|
bin | 101111111011… |
… | …1011011010001 |
3 | 1202021202211212 |
4 | 1133313123101 |
5 | 22413140310 |
6 | 2254345505 |
7 | 423415235 |
oct | 137673321 |
9 | 52252755 |
10 | 25130705 |
11 | 13205086 |
12 | 84bb295 |
13 | 528b852 |
14 | 34a25c5 |
15 | 2316205 |
hex | 17f76d1 |
25130705 has 16 divisors (see below), whose sum is σ = 31078080. Its totient is φ = 19497408.
The previous prime is 25130687. The next prime is 25130737. The reversal of 25130705 is 50703152.
It is a cyclic number.
It is not a de Polignac number, because 25130705 - 28 = 25130449 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38159 + ... + 38811.
It is an arithmetic number, because the mean of its divisors is an integer number (1942380).
Almost surely, 225130705 is an apocalyptic number.
It is an amenable number.
25130705 is a deficient number, since it is larger than the sum of its proper divisors (5947375).
25130705 is a wasteful number, since it uses less digits than its factorization.
25130705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 880.
The product of its (nonzero) digits is 1050, while the sum is 23.
The square root of 25130705 is about 5013.0534607163. The cubic root of 25130705 is about 292.9104666506.
Adding to 25130705 its reverse (50703152), we get a palindrome (75833857).
The spelling of 25130705 in words is "twenty-five million, one hundred thirty thousand, seven hundred five".
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