Base | Representation |
---|---|
bin | 110000000111… |
… | …1110110011011 |
3 | 1202110212002010 |
4 | 1200033312123 |
5 | 22424340442 |
6 | 2300441003 |
7 | 424313013 |
oct | 140176633 |
9 | 52425063 |
10 | 25230747 |
11 | 13273263 |
12 | 8549163 |
13 | 52c5249 |
14 | 34cac43 |
15 | 2335b9c |
hex | 180fd9b |
25230747 has 16 divisors (see below), whose sum is σ = 35290368. Its totient is φ = 16003680.
The previous prime is 25230743. The next prime is 25230749. The reversal of 25230747 is 74703252.
25230747 is nontrivially palindromic in base 14.
It is not a de Polignac number, because 25230747 - 22 = 25230743 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (25230743) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13693 + ... + 15425.
It is an arithmetic number, because the mean of its divisors is an integer number (2205648).
Almost surely, 225230747 is an apocalyptic number.
25230747 is a deficient number, since it is larger than the sum of its proper divisors (10059621).
25230747 is a wasteful number, since it uses less digits than its factorization.
25230747 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1970.
The product of its (nonzero) digits is 11760, while the sum is 30.
The square root of 25230747 is about 5023.0217001323. The cubic root of 25230747 is about 293.2986312541.
Adding to 25230747 its reverse (74703252), we get a palindrome (99933999).
It can be divided in two parts, 25 and 230747, that multiplied together give a palindrome (5768675).
The spelling of 25230747 in words is "twenty-five million, two hundred thirty thousand, seven hundred forty-seven".
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