Base | Representation |
---|---|
bin | 111111101100100011… |
… | …110110101001010100 |
3 | 20112112110010012201212 |
4 | 333230203312221110 |
5 | 2110032143100114 |
6 | 51230334240552 |
7 | 4640564503205 |
oct | 775443665124 |
9 | 215473105655 |
10 | 68393331284 |
11 | 27007286093 |
12 | 11308956158 |
13 | 65ac6183c5 |
14 | 344b4a75ac |
15 | 1ba4545b3e |
hex | fec8f6a54 |
68393331284 has 24 divisors (see below), whose sum is σ = 123616408608. Its totient is φ = 33089222880.
The previous prime is 68393331269. The next prime is 68393331311. The reversal of 68393331284 is 48213339386.
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 7 ways as a sum of consecutive naturals, for example, 1839707 + ... + 1876514.
It is an arithmetic number, because the mean of its divisors is an integer number (5150683692).
Almost surely, 268393331284 is an apocalyptic number.
It is an amenable number.
68393331284 is a deficient number, since it is larger than the sum of its proper divisors (55223077324).
68393331284 is a wasteful number, since it uses less digits than its factorization.
68393331284 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3716375 (or 3716373 counting only the distinct ones).
The product of its digits is 2239488, while the sum is 50.
The spelling of 68393331284 in words is "sixty-eight billion, three hundred ninety-three million, three hundred thirty-one thousand, two hundred eighty-four".
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