Base | Representation |
---|---|
bin | 110001000010… |
… | …1100111100101 |
3 | 1210101100202222 |
4 | 1202011213211 |
5 | 23040310000 |
6 | 2315042125 |
7 | 431362244 |
oct | 142054745 |
9 | 53340688 |
10 | 25713125 |
11 | 13572719 |
12 | 8740345 |
13 | 5433989 |
14 | 35b495b |
15 | 23cda85 |
hex | 18859e5 |
25713125 has 10 divisors (see below), whose sum is σ = 32131902. Its totient is φ = 20570000.
The previous prime is 25713101. The next prime is 25713131. The reversal of 25713125 is 52131752.
It can be written as a sum of positive squares in 5 ways, for example, as 9205156 + 16507969 = 3034^2 + 4063^2 .
It is not a de Polignac number, because 25713125 - 210 = 25712101 is a prime.
It is a super-2 number, since 2×257131252 = 1322329594531250, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 25713094 and 25713103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19946 + ... + 21195.
Almost surely, 225713125 is an apocalyptic number.
25713125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
25713125 is a deficient number, since it is larger than the sum of its proper divisors (6418777).
25713125 is an frugal number, since it uses more digits than its factorization.
25713125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41161 (or 41146 counting only the distinct ones).
The product of its digits is 2100, while the sum is 26.
The square root of 25713125 is about 5070.8110791076. The cubic root of 25713125 is about 295.1560029035.
Adding to 25713125 its reverse (52131752), we get a palindrome (77844877).
The spelling of 25713125 in words is "twenty-five million, seven hundred thirteen thousand, one hundred twenty-five".
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