Base | Representation |
---|---|
bin | 111111100011100010… |
… | …000111011011110001 |
3 | 20112010220010201202022 |
4 | 333203202013123301 |
5 | 2104224410141232 |
6 | 51203324201225 |
7 | 4634045262515 |
oct | 774342073361 |
9 | 215126121668 |
10 | 68241880817 |
11 | 26a39843110 |
12 | 11286099215 |
13 | 658712c246 |
14 | 3435322145 |
15 | 1b960cb812 |
hex | fe38876f1 |
68241880817 has 16 divisors (see below), whose sum is σ = 76104693504. Its totient is φ = 60658176000.
The previous prime is 68241880747. The next prime is 68241880823. The reversal of 68241880817 is 71808814286.
It is a cyclic number.
It is not a de Polignac number, because 68241880817 - 28 = 68241880561 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68241810817) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463217 + ... + 592497.
It is an arithmetic number, because the mean of its divisors is an integer number (4756543344).
Almost surely, 268241880817 is an apocalyptic number.
It is an amenable number.
68241880817 is a deficient number, since it is larger than the sum of its proper divisors (7862812687).
68241880817 is a wasteful number, since it uses less digits than its factorization.
68241880817 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130360.
The product of its (nonzero) digits is 1376256, while the sum is 53.
The spelling of 68241880817 in words is "sixty-eight billion, two hundred forty-one million, eight hundred eighty thousand, eight hundred seventeen".
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