Base | Representation |
---|---|
bin | 111111011000110001… |
… | …011000110000100000 |
3 | 20111200022102000211220 |
4 | 333120301120300200 |
5 | 2103342200201220 |
6 | 51133354335040 |
7 | 4626423540552 |
oct | 773061306040 |
9 | 214608360756 |
10 | 68061334560 |
11 | 2695693802a |
12 | 1123572a480 |
13 | 65588c683b |
14 | 34193654d2 |
15 | 1b85316540 |
hex | fd8c58c20 |
68061334560 has 48 divisors (see below), whose sum is σ = 214393205376. Its totient is φ = 18149689088.
The previous prime is 68061334541. The next prime is 68061334619. The reversal of 68061334560 is 6543316086.
It is a tau number, because it is divible by the number of its divisors (48).
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, 70896744 + ... + 70897703.
It is an arithmetic number, because the mean of its divisors is an integer number (4466525112).
Almost surely, 268061334560 is an apocalyptic number.
68061334560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68061334560 is an abundant number, since it is smaller than the sum of its proper divisors (146331870816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68061334560 is a wasteful number, since it uses less digits than its factorization.
68061334560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141794465 (or 141794457 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 42.
The spelling of 68061334560 in words is "sixty-eight billion, sixty-one million, three hundred thirty-four thousand, five hundred sixty".
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