Base | Representation |
---|---|
bin | 111111100111111101… |
… | …101010111111100011 |
3 | 20112100002000012122020 |
4 | 333213331222333203 |
5 | 2104402422310334 |
6 | 51214541312523 |
7 | 4635640142202 |
oct | 774775527743 |
9 | 215302005566 |
10 | 68316213219 |
11 | 26a777a3151 |
12 | 112a6b65743 |
13 | 6599656a07 |
14 | 3441151239 |
15 | 1b9c8b0e49 |
hex | fe7f6afe3 |
68316213219 has 16 divisors (see below), whose sum is σ = 91582009344. Its totient is φ = 45297368000.
The previous prime is 68316213179. The next prime is 68316213233. The reversal of 68316213219 is 91231261386.
It is a cyclic number.
It is not a de Polignac number, because 68316213219 - 233 = 59726278627 is a prime.
It is a super-2 number, since 2×683162132192 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68316213019) 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, 5783119 + ... + 5794919.
It is an arithmetic number, because the mean of its divisors is an integer number (5723875584).
Almost surely, 268316213219 is an apocalyptic number.
68316213219 is a deficient number, since it is larger than the sum of its proper divisors (23265796125).
68316213219 is a wasteful number, since it uses less digits than its factorization.
68316213219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22098.
The product of its digits is 93312, while the sum is 42.
The spelling of 68316213219 in words is "sixty-eight billion, three hundred sixteen million, two hundred thirteen thousand, two hundred nineteen".
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