Base | Representation |
---|---|
bin | 10110101000111111… |
… | …11010000001011100 |
3 | 1011101002220110100112 |
4 | 23110133322001130 |
5 | 144343144143013 |
6 | 5330045145152 |
7 | 610133243342 |
oct | 132437720134 |
9 | 34332813315 |
10 | 12155068508 |
11 | 5178245970 |
12 | 243285b1b8 |
13 | 11b931973b |
14 | 834465992 |
15 | 4b21a1ba8 |
hex | 2d47fa05c |
12155068508 has 48 divisors (see below), whose sum is σ = 23634374400. Its totient is φ = 5423510400.
The previous prime is 12155068507. The next prime is 12155068537. The reversal of 12155068508 is 80586055121.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12155068501) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719543 + ... + 736241.
It is an arithmetic number, because the mean of its divisors is an integer number (492382800).
Almost surely, 212155068508 is an apocalyptic number.
It is an amenable number.
12155068508 is a deficient number, since it is larger than the sum of its proper divisors (11479305892).
12155068508 is a wasteful number, since it uses less digits than its factorization.
12155068508 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17018 (or 17016 counting only the distinct ones).
The product of its (nonzero) digits is 96000, while the sum is 41.
The spelling of 12155068508 in words is "twelve billion, one hundred fifty-five million, sixty-eight thousand, five hundred eight".
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