Base | Representation |
---|---|
bin | 10111010010010001… |
… | …111011000001001001 |
3 | 2101112111002022010201 |
4 | 113102101323001021 |
5 | 402201201000100 |
6 | 15252555412201 |
7 | 1543406603641 |
oct | 272221730111 |
9 | 71474068121 |
10 | 25002750025 |
11 | a670445180 |
12 | 4a19454061 |
13 | 2485c8a156 |
14 | 12d28a1521 |
15 | 9b506736a |
hex | 5d247b049 |
25002750025 has 48 divisors (see below), whose sum is σ = 34539271488. Its totient is φ = 17801856000.
The previous prime is 25002749999. The next prime is 25002750041. The reversal of 25002750025 is 52005720052.
It is not a de Polignac number, because 25002750025 - 231 = 22855266377 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 25002749975 and 25002750002.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2745730 + ... + 2754820.
It is an arithmetic number, because the mean of its divisors is an integer number (719568156).
Almost surely, 225002750025 is an apocalyptic number.
25002750025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
25002750025 is a deficient number, since it is larger than the sum of its proper divisors (9536521463).
25002750025 is a wasteful number, since it uses less digits than its factorization.
25002750025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9322 (or 9317 counting only the distinct ones).
The product of its (nonzero) digits is 7000, while the sum is 28.
The spelling of 25002750025 in words is "twenty-five billion, two million, seven hundred fifty thousand, twenty-five".
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