Base | Representation |
---|---|
bin | 10101101101000110… |
… | …101101011100011001 |
3 | 2020011012001111221122 |
4 | 111231012231130121 |
5 | 340212124441100 |
6 | 14412321415025 |
7 | 1453345612052 |
oct | 255506553431 |
9 | 66135044848 |
10 | 23305312025 |
11 | 997a271956 |
12 | 4624a9a475 |
13 | 22753c9a78 |
14 | 11b1285729 |
15 | 91601c985 |
hex | 56d1ad719 |
23305312025 has 12 divisors (see below), whose sum is σ = 28943272512. Its totient is φ = 18615420240.
The previous prime is 23305311979. The next prime is 23305312031. The reversal of 23305312025 is 52021350332.
It is not a de Polignac number, because 23305312025 - 214 = 23305295641 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23305311985 and 23305312003.
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 11 ways as a sum of consecutive naturals, for example, 704237 + ... + 736586.
It is an arithmetic number, because the mean of its divisors is an integer number (2411939376).
Almost surely, 223305312025 is an apocalyptic number.
23305312025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
23305312025 is a deficient number, since it is larger than the sum of its proper divisors (5637960487).
23305312025 is a wasteful number, since it uses less digits than its factorization.
23305312025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1441480 (or 1441475 counting only the distinct ones).
The product of its (nonzero) digits is 5400, while the sum is 26.
Adding to 23305312025 its reverse (52021350332), we get a palindrome (75326662357).
The spelling of 23305312025 in words is "twenty-three billion, three hundred five million, three hundred twelve thousand, twenty-five".
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