Base | Representation |
---|---|
bin | 11000000010011100… |
… | …00100011000000101 |
3 | 1020022101201120110020 |
4 | 30001032010120011 |
5 | 202412233221140 |
6 | 5532330445353 |
7 | 634543544544 |
oct | 140116043005 |
9 | 36271646406 |
10 | 12905367045 |
11 | 552281a2aa |
12 | 2601b93859 |
13 | 12a88ba07c |
14 | 8a5d7415b |
15 | 507eac6d0 |
hex | 301384605 |
12905367045 has 32 divisors (see below), whose sum is σ = 22047455232. Its totient is φ = 6430492992.
The previous prime is 12905366989. The next prime is 12905367071. The reversal of 12905367045 is 54076350921.
It is not a de Polignac number, because 12905367045 - 29 = 12905366533 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12905366988 and 12905367006.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420129 + ... + 449798.
It is an arithmetic number, because the mean of its divisors is an integer number (688982976).
Almost surely, 212905367045 is an apocalyptic number.
12905367045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12905367045 is a deficient number, since it is larger than the sum of its proper divisors (9142088187).
12905367045 is a wasteful number, since it uses less digits than its factorization.
12905367045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 870001.
The product of its (nonzero) digits is 226800, while the sum is 42.
The spelling of 12905367045 in words is "twelve billion, nine hundred five million, three hundred sixty-seven thousand, forty-five".
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