Base | Representation |
---|---|
bin | 101111111001… |
… | …1000111000001 |
3 | 1202020212121001 |
4 | 1133303013001 |
5 | 22412104100 |
6 | 2254132001 |
7 | 423312550 |
oct | 137630701 |
9 | 52225531 |
10 | 25113025 |
11 | 131a2873 |
12 | 84b1001 |
13 | 52837a2 |
14 | 3499d97 |
15 | 2310d6a |
hex | 17f31c1 |
25113025 has 12 divisors (see below), whose sum is σ = 35588992. Its totient is φ = 17220240.
The previous prime is 25112999. The next prime is 25113031. The reversal of 25113025 is 52031152.
It is a de Polignac number, because none of the positive numbers 2k-25113025 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 25112993 and 25113011.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71577 + ... + 71926.
Almost surely, 225113025 is an apocalyptic number.
25113025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
25113025 is a deficient number, since it is larger than the sum of its proper divisors (10475967).
25113025 is a wasteful number, since it uses less digits than its factorization.
25113025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 143520 (or 143515 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 25113025 is about 5011.2897541451. The cubic root of 25113025 is about 292.8417608986.
Adding to 25113025 its reverse (52031152), we get a palindrome (77144177).
It can be divided in two parts, 25 and 113025, that added together give a triangular number (113050 = T475).
The spelling of 25113025 in words is "twenty-five million, one hundred thirteen thousand, twenty-five".
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