Base | Representation |
---|---|
bin | 101111111110… |
… | …0001010101101 |
3 | 1202022202111010 |
4 | 1133330022231 |
5 | 22414301000 |
6 | 2255015433 |
7 | 423525660 |
oct | 137741255 |
9 | 52282433 |
10 | 25150125 |
11 | 13218730 |
12 | 850a579 |
13 | 5297640 |
14 | 34a96d7 |
15 | 231bd50 |
hex | 17fc2ad |
25150125 has 128 divisors (see below), whose sum is σ = 57028608. Its totient is φ = 9504000.
The previous prime is 25150087. The next prime is 25150133. The reversal of 25150125 is 52105152.
It is not a de Polignac number, because 25150125 - 27 = 25149997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 375342 + ... + 375408.
It is an arithmetic number, because the mean of its divisors is an integer number (445536).
Almost surely, 225150125 is an apocalyptic number.
25150125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
25150125 is an abundant number, since it is smaller than the sum of its proper divisors (31878483).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25150125 is a wasteful number, since it uses less digits than its factorization.
25150125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 116 (or 106 counting only the distinct ones).
The product of its (nonzero) digits is 500, while the sum is 21.
The square root of 25150125 is about 5014.9900299004. The cubic root of 25150125 is about 292.9858970408.
Adding to 25150125 its reverse (52105152), we get a palindrome (77255277).
The spelling of 25150125 in words is "twenty-five million, one hundred fifty thousand, one hundred twenty-five".
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