Base | Representation |
---|---|
bin | 101111111011… |
… | …1100010000101 |
3 | 1202021210110000 |
4 | 1133313202011 |
5 | 22413144031 |
6 | 2254351513 |
7 | 423416430 |
oct | 137674205 |
9 | 52253400 |
10 | 25131141 |
11 | 13205442 |
12 | 84bb599 |
13 | 528bac9 |
14 | 34a2817 |
15 | 23163e6 |
hex | 17f7885 |
25131141 has 40 divisors (see below), whose sum is σ = 43366400. Its totient is φ = 14206752.
The previous prime is 25131133. The next prime is 25131187. The reversal of 25131141 is 14113152.
It is not a de Polignac number, because 25131141 - 23 = 25131133 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25131131) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 71835 + ... + 72183.
It is an arithmetic number, because the mean of its divisors is an integer number (1084160).
Almost surely, 225131141 is an apocalyptic number.
25131141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
25131141 is a deficient number, since it is larger than the sum of its proper divisors (18235259).
25131141 is a wasteful number, since it uses less digits than its factorization.
25131141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 495 (or 486 counting only the distinct ones).
The product of its digits is 120, while the sum is 18.
The square root of 25131141 is about 5013.0969469979. The cubic root of 25131141 is about 292.9121605708.
Adding to 25131141 its reverse (14113152), we get a palindrome (39244293).
The spelling of 25131141 in words is "twenty-five million, one hundred thirty-one thousand, one hundred forty-one".
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