Base | Representation |
---|---|
bin | 111111110110000010… |
… | …110100001110010000 |
3 | 20112221112111220122210 |
4 | 333312002310032100 |
5 | 2110343411132033 |
6 | 51254220432120 |
7 | 4644536102115 |
oct | 776602641620 |
9 | 215845456583 |
10 | 68552442768 |
11 | 27089080987 |
12 | 113520a8640 |
13 | 6606587604 |
14 | 346468490c |
15 | 1bb34c4d63 |
hex | ff60b4390 |
68552442768 has 40 divisors (see below), whose sum is σ = 177229469088. Its totient is φ = 22833309952.
The previous prime is 68552442697. The next prime is 68552442769. The reversal of 68552442768 is 86724425586.
68552442768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (68552442769) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483621 + ... + 609092.
Almost surely, 268552442768 is an apocalyptic number.
It is an amenable number.
68552442768 is an abundant number, since it is smaller than the sum of its proper divisors (108677026320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68552442768 is a wasteful number, since it uses less digits than its factorization.
68552442768 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1094031 (or 1094025 counting only the distinct ones).
The product of its digits is 25804800, while the sum is 57.
The spelling of 68552442768 in words is "sixty-eight billion, five hundred fifty-two million, four hundred forty-two thousand, seven hundred sixty-eight".
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