Base | Representation |
---|---|
bin | 111111011001001010… |
… | …110101111000111000 |
3 | 20111200202222001101002 |
4 | 333121022311320320 |
5 | 2103400402214410 |
6 | 51134153344132 |
7 | 4626534342254 |
oct | 773112657070 |
9 | 214622861332 |
10 | 68068007480 |
11 | 2695a685540 |
12 | 11237a08048 |
13 | 655a0c1c05 |
14 | 341a1c1264 |
15 | 1b85bd37a5 |
hex | fd92b5e38 |
68068007480 has 128 divisors (see below), whose sum is σ = 177566904000. Its totient is φ = 23208714240.
The previous prime is 68068007479. The next prime is 68068007503. The reversal of 68068007480 is 8470086086.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1995206 + ... + 2029034.
Almost surely, 268068007480 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 68068007480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88783452000).
68068007480 is an abundant number, since it is smaller than the sum of its proper divisors (109498896520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68068007480 is a wasteful number, since it uses less digits than its factorization.
68068007480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34137 (or 34133 counting only the distinct ones).
The product of its (nonzero) digits is 516096, while the sum is 47.
The spelling of 68068007480 in words is "sixty-eight billion, sixty-eight million, seven thousand, four hundred eighty".
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