Base | Representation |
---|---|
bin | 11111001001010010100100… |
… | …10110001110101011000000 |
3 | 22222111110220021221110120000 |
4 | 33210221102112032223000 |
5 | 32434110312043422432 |
6 | 401355214034320000 |
7 | 20266106351050560 |
oct | 1744512226165300 |
9 | 288443807843500 |
10 | 68488930060992 |
11 | 1a905aa0575811 |
12 | 7821744129000 |
13 | 2c2a62b048c3c |
14 | 12cac4bd20da0 |
15 | 7db84a89457c |
hex | 3e4a5258eac0 |
68488930060992 has 280 divisors, whose sum is σ = 232070464565280. Its totient is φ = 19564505579520.
The previous prime is 68488930060973. The next prime is 68488930061003. The reversal of 68488930060992 is 29906003988486.
It is a happy number.
68488930060992 is a `hidden beast` number, since 6 + 8 + 4 + 8 + 8 + 9 + 3 + 0 + 0 + 609 + 9 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a self number, because there is not a number n which added to its sum of digits gives 68488930060992.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 191458234 + ... + 191815622.
Almost surely, 268488930060992 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 68488930060992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116035232282640).
68488930060992 is an abundant number, since it is smaller than the sum of its proper divisors (163581534504288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68488930060992 is a wasteful number, since it uses less digits than its factorization.
68488930060992 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 362701 (or 362682 counting only the distinct ones).
The product of its (nonzero) digits is 322486272, while the sum is 72.
The spelling of 68488930060992 in words is "sixty-eight trillion, four hundred eighty-eight billion, nine hundred thirty million, sixty thousand, nine hundred ninety-two".
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