Base | Representation |
---|---|
bin | 10111011110011111… |
… | …000110001001000110 |
3 | 2102001202102012112020 |
4 | 113132133012021012 |
5 | 403111111430204 |
6 | 15325152504010 |
7 | 1551444320160 |
oct | 273637061106 |
9 | 72052365466 |
10 | 25207530054 |
11 | a765aa2473 |
12 | 4a75b4b006 |
13 | 24b9529075 |
14 | 1311b69930 |
15 | 9c8017bd9 |
hex | 5de7c6246 |
25207530054 has 32 divisors (see below), whose sum is σ = 57735568896. Its totient is φ = 7187356800.
The previous prime is 25207529993. The next prime is 25207530067. The reversal of 25207530054 is 45003570252.
It is a junction number, because it is equal to n+sod(n) for n = 25207529997 and 25207530024.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595747 + ... + 636654.
It is an arithmetic number, because the mean of its divisors is an integer number (1804236528).
Almost surely, 225207530054 is an apocalyptic number.
25207530054 is an abundant number, since it is smaller than the sum of its proper divisors (32528038842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25207530054 is a wasteful number, since it uses less digits than its factorization.
25207530054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1232900.
The product of its (nonzero) digits is 42000, while the sum is 33.
The spelling of 25207530054 in words is "twenty-five billion, two hundred seven million, five hundred thirty thousand, fifty-four".
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