Base | Representation |
---|---|
bin | 111111101001011111… |
… | …101010010111100010 |
3 | 20112101212100021100000 |
4 | 333221133222113202 |
5 | 2104431011311040 |
6 | 51221300040430 |
7 | 4636401400053 |
oct | 775137522742 |
9 | 215355307300 |
10 | 68341900770 |
11 | 26a90248630 |
12 | 112b3693116 |
13 | 65a1a7bb50 |
14 | 344471a72a |
15 | 1b9ec87130 |
hex | fe97ea5e2 |
68341900770 has 768 divisors, whose sum is σ = 239661047808. Its totient is φ = 13740503040.
The previous prime is 68341900751. The next prime is 68341900799. The reversal of 68341900770 is 7700914386.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 135868339 + ... + 135868841.
It is an arithmetic number, because the mean of its divisors is an integer number (312058656).
Almost surely, 268341900770 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68341900770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119830523904).
68341900770 is an abundant number, since it is smaller than the sum of its proper divisors (171319147038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68341900770 is a wasteful number, since it uses less digits than its factorization.
68341900770 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 589 (or 577 counting only the distinct ones).
The product of its (nonzero) digits is 254016, while the sum is 45.
The spelling of 68341900770 in words is "sixty-eight billion, three hundred forty-one million, nine hundred thousand, seven hundred seventy".
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