| Base | Representation |
|---|---|
| bin | 1010110101111001010001… |
| … | …1010110000000010010000 |
| 3 | 1120012122020200100012020000 |
| 4 | 2231132110122300002100 |
| 5 | 3030303224204134424 |
| 6 | 41204235402250000 |
| 7 | 2340160044354000 |
| oct | 255362432600220 |
| 9 | 46178220305200 |
| 10 | 11921024286864 |
| 11 | 388675047a6a0 |
| 12 | 140645aab6900 |
| 13 | 6861bc849694 |
| 14 | 2d2da2cb4000 |
| 15 | 15a15e82e3c9 |
| hex | ad7946b0090 |
11921024286864 has 800 divisors, whose sum is σ = 45311023718400. Its totient is φ = 2996448940800.
The previous prime is 11921024286863. The next prime is 11921024286923. The reversal of 11921024286864 is 46868242012911.
11921024286864 is a `hidden beast` number, since 1 + 1 + 92 + 10 + 2 + 428 + 68 + 64 = 666.
It is a super-2 number, since 2×119210242868642 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a self number, because there is not a number n which added to its sum of digits gives 11921024286864.
It is not an unprimeable number, because it can be changed into a prime (11921024286863) by changing a digit.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 151544727 + ... + 151623369.
It is an arithmetic number, because the mean of its divisors is an integer number (56638779648).
Almost surely, 211921024286864 is an apocalyptic number.
11921024286864 is a gapful number since it is divisible by the number (14) 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 11921024286864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22655511859200).
11921024286864 is an abundant number, since it is smaller than the sum of its proper divisors (33389999431536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11921024286864 is a wasteful number, since it uses less digits than its factorization.
11921024286864 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78726 (or 78697 counting only the distinct ones).
The product of its (nonzero) digits is 2654208, while the sum is 54.
The spelling of 11921024286864 in words is "eleven trillion, nine hundred twenty-one billion, twenty-four million, two hundred eighty-six thousand, eight hundred sixty-four".
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