Base | Representation |
---|---|
bin | 10111011111110101… |
… | …000001001001111101 |
3 | 2102010022210112120221 |
4 | 113133311001021331 |
5 | 403132343212023 |
6 | 15331315341341 |
7 | 1552136630533 |
oct | 273765011175 |
9 | 72108715527 |
10 | 25230054013 |
11 | a77778700a |
12 | 4a815b1851 |
13 | 24c10b4258 |
14 | 1314b50153 |
15 | 9c9eb685d |
hex | 5dfd4127d |
25230054013 has 4 divisors (see below), whose sum is σ = 25245639360. Its totient is φ = 25214468668.
The previous prime is 25230053999. The next prime is 25230054107. The reversal of 25230054013 is 31045003252.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 25230054013 - 29 = 25230053501 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25230054313) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7790245 + ... + 7793482.
It is an arithmetic number, because the mean of its divisors is an integer number (6311409840).
Almost surely, 225230054013 is an apocalyptic number.
It is an amenable number.
25230054013 is a deficient number, since it is larger than the sum of its proper divisors (15585347).
25230054013 is a wasteful number, since it uses less digits than its factorization.
25230054013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15585346.
The product of its (nonzero) digits is 3600, while the sum is 25.
Adding to 25230054013 its reverse (31045003252), we get a palindrome (56275057265).
The spelling of 25230054013 in words is "twenty-five billion, two hundred thirty million, fifty-four thousand, thirteen".
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