Base | Representation |
---|---|
bin | 100000000111111001… |
… | …0001010111111110111 |
3 | 20121001122002212212212 |
4 | 1000033302022333313 |
5 | 2112234434142343 |
6 | 51405124404035 |
7 | 4661331523625 |
oct | 1001762127767 |
9 | 217048085785 |
10 | 68984287223 |
11 | 2728a917025 |
12 | 1145284661b |
13 | 6674b98587 |
14 | 34a5b78515 |
15 | 1bdb378c18 |
hex | 100fc8aff7 |
68984287223 has 2 divisors, whose sum is σ = 68984287224. Its totient is φ = 68984287222.
The previous prime is 68984287219. The next prime is 68984287237. The reversal of 68984287223 is 32278248986.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68984287223 - 22 = 68984287219 is a prime.
It is a super-2 number, since 2×689842872232 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68984287123) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34492143611 + 34492143612.
It is an arithmetic number, because the mean of its divisors is an integer number (34492143612).
Almost surely, 268984287223 is an apocalyptic number.
68984287223 is a deficient number, since it is larger than the sum of its proper divisors (1).
68984287223 is an equidigital number, since it uses as much as digits as its factorization.
68984287223 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 18579456, while the sum is 59.
The spelling of 68984287223 in words is "sixty-eight billion, nine hundred eighty-four million, two hundred eighty-seven thousand, two hundred twenty-three".
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