Base | Representation |
---|---|
bin | 10111011111111100… |
… | …101100111110110011 |
3 | 2102010110120212222201 |
4 | 113133330230332303 |
5 | 403133402143111 |
6 | 15331430444031 |
7 | 1552163021005 |
oct | 273774547663 |
9 | 72113525881 |
10 | 25232068531 |
11 | a7789325aa |
12 | 4a82203617 |
13 | 24c163b187 |
14 | 1315116375 |
15 | 9ca2636c1 |
hex | 5dff2cfb3 |
25232068531 has 4 divisors (see below), whose sum is σ = 25232389992. Its totient is φ = 25231747072.
The previous prime is 25232068507. The next prime is 25232068573. The reversal of 25232068531 is 13586023252.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 25232068531 - 27 = 25232068403 is a prime.
It is a super-2 number, since 2×252320685312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (25232068501) 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, 43560 + ... + 228826.
It is an arithmetic number, because the mean of its divisors is an integer number (6308097498).
Almost surely, 225232068531 is an apocalyptic number.
25232068531 is a deficient number, since it is larger than the sum of its proper divisors (321461).
25232068531 is a wasteful number, since it uses less digits than its factorization.
25232068531 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 321460.
The product of its (nonzero) digits is 86400, while the sum is 37.
The spelling of 25232068531 in words is "twenty-five billion, two hundred thirty-two million, sixty-eight thousand, five hundred thirty-one".
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