Base | Representation |
---|---|
bin | 111111100111011110… |
… | …101110000010000000 |
3 | 20112022111201222022000 |
4 | 333213132232002000 |
5 | 2104343333133300 |
6 | 51214051344000 |
7 | 4635511156155 |
oct | 774736560200 |
9 | 215274658260 |
10 | 68308099200 |
11 | 26a73160a50 |
12 | 112a42b2000 |
13 | 6597a75713 |
14 | 344003c22c |
15 | 1b9bd0bc00 |
hex | fe77ae080 |
68308099200 has 768 divisors, whose sum is σ = 279525859200. Its totient is φ = 16146432000.
The previous prime is 68308099169. The next prime is 68308099229. The reversal of 68308099200 is 299080386.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
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 95 ways as a sum of consecutive naturals, for example, 38965524 + ... + 38967276.
Almost surely, 268308099200 is an apocalyptic number.
68308099200 is a gapful number since it is divisible by the number (60) 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 68308099200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139762929600).
68308099200 is an abundant number, since it is smaller than the sum of its proper divisors (211217760000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68308099200 is a wasteful number, since it uses less digits than its factorization.
68308099200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1838 (or 1815 counting only the distinct ones).
The product of its (nonzero) digits is 186624, while the sum is 45.
The spelling of 68308099200 in words is "sixty-eight billion, three hundred eight million, ninety-nine thousand, two hundred".
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