Base | Representation |
---|---|
bin | 10111110110100010… |
… | …11100110101000011 |
3 | 1020001102222101112200 |
4 | 23323101130311003 |
5 | 202211212342324 |
6 | 5514404124243 |
7 | 632222502423 |
oct | 137321346503 |
9 | 36042871480 |
10 | 12805590339 |
11 | 5481470613 |
12 | 2594696683 |
13 | 12910240b9 |
14 | 896a00483 |
15 | 4ee34dec9 |
hex | 2fb45cd43 |
12805590339 has 12 divisors (see below), whose sum is σ = 18506718672. Its totient is φ = 8532558000.
The previous prime is 12805590299. The next prime is 12805590353. The reversal of 12805590339 is 93309550821.
12805590339 is a `hidden beast` number, since 1 + 28 + 0 + 5 + 590 + 3 + 39 = 666.
It is not a de Polignac number, because 12805590339 - 213 = 12805582147 is a prime.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 12805590294 and 12805590303.
It is not an unprimeable number, because it can be changed into a prime (12805590359) by changing a digit.
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, 357127 + ... + 391344.
It is an arithmetic number, because the mean of its divisors is an integer number (1542226556).
Almost surely, 212805590339 is an apocalyptic number.
12805590339 is a deficient number, since it is larger than the sum of its proper divisors (5701128333).
12805590339 is a wasteful number, since it uses less digits than its factorization.
12805590339 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 750378 (or 750375 counting only the distinct ones).
The product of its (nonzero) digits is 291600, while the sum is 45.
The spelling of 12805590339 in words is "twelve billion, eight hundred five million, five hundred ninety thousand, three hundred thirty-nine".
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