Base | Representation |
---|---|
bin | 111111011011101111… |
… | …101011101101111011 |
3 | 20111210210021110020012 |
4 | 333123233223231323 |
5 | 2103442433011304 |
6 | 51142335452135 |
7 | 4630600546124 |
oct | 773357535573 |
9 | 214723243205 |
10 | 68111219579 |
11 | 2698200a417 |
12 | 1124a38704b |
13 | 65660417c0 |
14 | 3421c2d04b |
15 | 1b898bc16e |
hex | fdbbebb7b |
68111219579 has 8 divisors (see below), whose sum is σ = 76539698592. Its totient is φ = 60138334080.
The previous prime is 68111219543. The next prime is 68111219581. The reversal of 68111219579 is 97591211186.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68111219579 - 216 = 68111154043 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68111219599) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113898062 + ... + 113898659.
It is an arithmetic number, because the mean of its divisors is an integer number (9567462324).
Almost surely, 268111219579 is an apocalyptic number.
68111219579 is a deficient number, since it is larger than the sum of its proper divisors (8428479013).
68111219579 is a wasteful number, since it uses less digits than its factorization.
68111219579 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 227796757.
The product of its digits is 272160, while the sum is 50.
The spelling of 68111219579 in words is "sixty-eight billion, one hundred eleven million, two hundred nineteen thousand, five hundred seventy-nine".
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