Base | Representation |
---|---|
bin | 10010111010000111… |
… | …001111100010101001 |
3 | 1221101220102020002002 |
4 | 102322013033202221 |
5 | 313034344030100 |
6 | 13154325220345 |
7 | 1316052646355 |
oct | 227207174251 |
9 | 57356366062 |
10 | 20302330025 |
11 | 867915504a |
12 | 3b272616b5 |
13 | 1bb7210143 |
14 | da8504465 |
15 | 7dc58a2d5 |
hex | 4ba1cf8a9 |
20302330025 has 12 divisors (see below), whose sum is σ = 25180455312. Its totient is φ = 16238273040.
The previous prime is 20302330007. The next prime is 20302330039. The reversal of 20302330025 is 52003320302.
It is not a de Polignac number, because 20302330025 - 218 = 20302067881 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 20302329979 and 20302330006.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28622 + ... + 203528.
It is an arithmetic number, because the mean of its divisors is an integer number (2098371276).
Almost surely, 220302330025 is an apocalyptic number.
20302330025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20302330025 is a deficient number, since it is larger than the sum of its proper divisors (4878125287).
20302330025 is a wasteful number, since it uses less digits than its factorization.
20302330025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 179560 (or 179555 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 20.
Adding to 20302330025 its reverse (52003320302), we get a palindrome (72305650327).
The spelling of 20302330025 in words is "twenty billion, three hundred two million, three hundred thirty thousand, twenty-five".
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