Base | Representation |
---|---|
bin | 111111110001000010… |
… | …001010011010000100 |
3 | 20112201200100100122101 |
4 | 333301002022122010 |
5 | 2110210401313122 |
6 | 51242015041444 |
7 | 4642465450000 |
oct | 776102123204 |
9 | 215650310571 |
10 | 68468385412 |
11 | 27045689399 |
12 | 11329b10284 |
13 | 65c203652b |
14 | 3457443700 |
15 | 1baae1e027 |
hex | ff108a684 |
68468385412 has 60 divisors (see below), whose sum is σ = 140343141456. Its totient is φ = 29225658000.
The previous prime is 68468385409. The next prime is 68468385413. The reversal of 68468385412 is 21458386486.
It is not an unprimeable number, because it can be changed into a prime (68468385413) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2396403 + ... + 2424805.
Almost surely, 268468385412 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 68468385412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70171570728).
68468385412 is an abundant number, since it is smaller than the sum of its proper divisors (71874756044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68468385412 is a wasteful number, since it uses less digits than its factorization.
68468385412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28686 (or 28663 counting only the distinct ones).
The product of its digits is 8847360, while the sum is 55.
The spelling of 68468385412 in words is "sixty-eight billion, four hundred sixty-eight million, three hundred eighty-five thousand, four hundred twelve".
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