| Base | Representation |
|---|---|
| bin | 1000111111111101100111… |
| … | …10001110111111111000000 |
| 3 | 2121001220021021200200100000 |
| 4 | 10133332303301313333000 |
| 5 | 10043214234203404304 |
| 6 | 110031211340200000 |
| 7 | 4111526633000460 |
| oct | 437766361677700 |
| 9 | 77056237620300 |
| 10 | 19789930528704 |
| 11 | 633a953952036 |
| 12 | 2277507839000 |
| 13 | b0724aa9242b |
| 14 | 4c5ba2ad1ba0 |
| 15 | 244bac8ce939 |
| hex | 11ffb3c77fc0 |
19789930528704 has 1344 divisors, whose sum is σ = 73371602304000. Its totient is φ = 5159923679232.
The previous prime is 19789930528703. The next prime is 19789930528727. The reversal of 19789930528704 is 40782503998791.
19789930528704 is a `hidden beast` number, since 1 + 9 + 7 + 8 + 9 + 93 + 0 + 528 + 7 + 0 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (1344).
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19789930528703) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11857357182 + ... + 11857358850.
It is an arithmetic number, because the mean of its divisors is an integer number (54591966000).
Almost surely, 219789930528704 is an apocalyptic number.
19789930528704 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 19789930528704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36685801152000).
19789930528704 is an abundant number, since it is smaller than the sum of its proper divisors (53581671775296).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19789930528704 is a wasteful number, since it uses less digits than its factorization.
19789930528704 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1912 (or 1890 counting only the distinct ones).
The product of its (nonzero) digits is 274337280, while the sum is 72.
The spelling of 19789930528704 in words is "nineteen trillion, seven hundred eighty-nine billion, nine hundred thirty million, five hundred twenty-eight thousand, seven hundred four".
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