Base | Representation |
---|---|
bin | 11111000001100111010101… |
… | …00111000000000001000000 |
3 | 22221120021011020221121200000 |
4 | 33200303222213000001000 |
5 | 32420300200313400023 |
6 | 401034120031400000 |
7 | 20241051654601005 |
oct | 1740635247000100 |
9 | 287507136847600 |
10 | 68225196621888 |
11 | 1a814163958499 |
12 | 779a600383000 |
13 | 2c0b7ba96b827 |
14 | 12bc18d5c38ac |
15 | 7d4a6204d243 |
hex | 3e0cea9c0040 |
68225196621888 has 672 divisors, whose sum is σ = 210653385022080. Its totient is φ = 21876154859520.
The previous prime is 68225196621847. The next prime is 68225196621893. The reversal of 68225196621888 is 88812669152286.
68225196621888 is a `hidden beast` number, since 6 + 8 + 2 + 2 + 519 + 6 + 6 + 21 + 8 + 88 = 666.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22086497848 + ... + 22086500936.
It is an arithmetic number, because the mean of its divisors is an integer number (313472299140).
Almost surely, 268225196621888 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68225196621888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105326692511040).
68225196621888 is an abundant number, since it is smaller than the sum of its proper divisors (142428188400192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68225196621888 is a wasteful number, since it uses less digits than its factorization.
68225196621888 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3577 (or 3555 counting only the distinct ones).
The product of its digits is 318504960, while the sum is 72.
The spelling of 68225196621888 in words is "sixty-eight trillion, two hundred twenty-five billion, one hundred ninety-six million, six hundred twenty-one thousand, eight hundred eighty-eight".
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