Base | Representation |
---|---|
bin | 100000000011101101… |
… | …1111101011110010000 |
3 | 20120200212121002201021 |
4 | 1000013123331132100 |
5 | 2111443111400203 |
6 | 51343203045224 |
7 | 4655011305112 |
oct | 1000733753620 |
9 | 216625532637 |
10 | 68844246928 |
11 | 27218867746 |
12 | 11413970814 |
13 | 6651b75ab2 |
14 | 34913233b2 |
15 | 1bcde155bd |
hex | 10076fd790 |
68844246928 has 40 divisors (see below), whose sum is σ = 142248083040. Its totient is φ = 32164200960.
The previous prime is 68844246901. The next prime is 68844246931. The reversal of 68844246928 is 82964244886.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872638 + ... + 948253.
It is an arithmetic number, because the mean of its divisors is an integer number (3556202076).
Almost surely, 268844246928 is an apocalyptic number.
68844246928 is a gapful number since it is divisible by the number (68) formed by its first and last digit.
It is an amenable number.
68844246928 is an abundant number, since it is smaller than the sum of its proper divisors (73403836112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68844246928 is a wasteful number, since it uses less digits than its factorization.
68844246928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1821055 (or 1821049 counting only the distinct ones).
The product of its digits is 42467328, while the sum is 61.
The spelling of 68844246928 in words is "sixty-eight billion, eight hundred forty-four million, two hundred forty-six thousand, nine hundred twenty-eight".
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