Base | Representation |
---|---|
bin | 111111011101111001… |
… | …101110101001101100 |
3 | 20111220022100222200101 |
4 | 333131321232221230 |
5 | 2104031214014333 |
6 | 51150111240444 |
7 | 4631520256150 |
oct | 773571565154 |
9 | 214808328611 |
10 | 68147407468 |
11 | 269a0486968 |
12 | 1125a519124 |
13 | 65706a215a |
14 | 342696d060 |
15 | 1b8cb6967d |
hex | fdde6ea6c |
68147407468 has 24 divisors (see below), whose sum is σ = 136306870784. Its totient is φ = 29203448400.
The previous prime is 68147407409. The next prime is 68147407543. The reversal of 68147407468 is 86470474186.
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, 233533 + ... + 436843.
Almost surely, 268147407468 is an apocalyptic number.
It is an amenable number.
68147407468 is an abundant number, since it is smaller than the sum of its proper divisors (68159463316).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68147407468 is a wasteful number, since it uses less digits than its factorization.
68147407468 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 215293 (or 215291 counting only the distinct ones).
The product of its (nonzero) digits is 7225344, while the sum is 55.
The spelling of 68147407468 in words is "sixty-eight billion, one hundred forty-seven million, four hundred seven thousand, four hundred sixty-eight".
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