| Base | Representation |
|---|---|
| bin | 11000000011001110… |
| … | …10011011100000000 |
| 3 | 1020022212011122221000 |
| 4 | 30001213103130000 |
| 5 | 202420431413321 |
| 6 | 5533124332000 |
| 7 | 634654016241 |
| oct | 140147233400 |
| 9 | 36285148830 |
| 10 | 12911982336 |
| 11 | 5526528490 |
| 12 | 2604244000 |
| 13 | 12aa095146 |
| 14 | 8a6bb6cc8 |
| 15 | 508867826 |
| hex | 3019d3700 |
12911982336 has 144 divisors (see below), whose sum is σ = 41654430720. Its totient is φ = 3912698880.
The previous prime is 12911982331. The next prime is 12911982371. The reversal of 12911982336 is 63328911921.
It is a happy number.
12911982336 is a `hidden beast` number, since 129 + 1 + 198 + 2 + 336 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 12911982291 and 12911982300.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12911982331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8880 + ... + 160943.
It is an arithmetic number, because the mean of its divisors is an integer number (289266880).
Almost surely, 212911982336 is an apocalyptic number.
12911982336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12911982336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20827215360).
12911982336 is an abundant number, since it is smaller than the sum of its proper divisors (28742448384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12911982336 is a wasteful number, since it uses less digits than its factorization.
12911982336 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 169859 (or 169839 counting only the distinct ones).
The product of its digits is 139968, while the sum is 45.
The spelling of 12911982336 in words is "twelve billion, nine hundred eleven million, nine hundred eighty-two thousand, three hundred thirty-six".
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