Base | Representation |
---|---|
bin | 111111011110101000… |
… | …101011001100111001 |
3 | 20111221011112020012202 |
4 | 333132220223030321 |
5 | 2104042341322410 |
6 | 51151231115545 |
7 | 4632030003440 |
oct | 773650531471 |
9 | 214834466182 |
10 | 68159714105 |
11 | 269a742203a |
12 | 11262672bb5 |
13 | 65730c08a2 |
14 | 3428453d57 |
15 | 1b8dc9aca5 |
hex | fdea2b339 |
68159714105 has 64 divisors (see below), whose sum is σ = 97758904320. Its totient is φ = 44639078400.
The previous prime is 68159714071. The next prime is 68159714111. The reversal of 68159714105 is 50141795186.
It is not a de Polignac number, because 68159714105 - 212 = 68159710009 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68159714105.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51674636 + ... + 51675954.
It is an arithmetic number, because the mean of its divisors is an integer number (1527482880).
Almost surely, 268159714105 is an apocalyptic number.
It is an amenable number.
68159714105 is a deficient number, since it is larger than the sum of its proper divisors (29599190215).
68159714105 is a wasteful number, since it uses less digits than its factorization.
68159714105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1950.
The product of its (nonzero) digits is 302400, while the sum is 47.
The spelling of 68159714105 in words is "sixty-eight billion, one hundred fifty-nine million, seven hundred fourteen thousand, one hundred five".
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