| Base | Representation |
|---|---|
| bin | 1001000110000011101011… |
| … | …10011011011010010000000 |
| 3 | 2121210220210200100122110200 |
| 4 | 10203001311303123102000 |
| 5 | 10110132124100124121 |
| 6 | 110311323304525200 |
| 7 | 4132622251242510 |
| oct | 443016563332200 |
| 9 | 77726720318420 |
| 10 | 19999344145536 |
| 11 | 641074642a958 |
| 12 | 22b000ba80800 |
| 13 | b20c12460082 |
| 14 | 4d1d8b0d5840 |
| 15 | 24a3674d3a26 |
| hex | 123075cdb480 |
19999344145536 has 384 divisors, whose sum is σ = 67045460227200. Its totient is φ = 5604308434944.
The previous prime is 19999344145531. The next prime is 19999344145601. The reversal of 19999344145536 is 63554144399991.
It is a happy number.
19999344145536 is a `hidden beast` number, since 1 + 9 + 9 + 9 + 9 + 3 + 4 + 41 + 45 + 536 = 666.
It is a tau number, because it is divible by the number of its divisors (384).
It is a Harshad number since it is a multiple of its sum of digits (72).
It is not an unprimeable number, because it can be changed into a prime (19999344145531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105277390 + ... + 105467186.
It is an arithmetic number, because the mean of its divisors is an integer number (174597552675).
Almost surely, 219999344145536 is an apocalyptic number.
19999344145536 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 19999344145536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33522730113600).
19999344145536 is an abundant number, since it is smaller than the sum of its proper divisors (47046116081664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19999344145536 is a wasteful number, since it uses less digits than its factorization.
19999344145536 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 190076 (or 190061 counting only the distinct ones).
The product of its digits is 566870400, while the sum is 72.
The spelling of 19999344145536 in words is "nineteen trillion, nine hundred ninety-nine billion, three hundred forty-four million, one hundred forty-five thousand, five hundred thirty-six".
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