Base | Representation |
---|---|
bin | 111111100010001101… |
… | …101101001010110111 |
3 | 20112002100111112021211 |
4 | 333202031231022313 |
5 | 2104203224100033 |
6 | 51201214022251 |
7 | 4633356222403 |
oct | 774215551267 |
9 | 215070445254 |
10 | 68219753143 |
11 | 26a282aa283 |
12 | 1127a7a7987 |
13 | 6582682549 |
14 | 3432402103 |
15 | 1b941aa2cd |
hex | fe236d2b7 |
68219753143 has 2 divisors, whose sum is σ = 68219753144. Its totient is φ = 68219753142.
The previous prime is 68219753071. The next prime is 68219753153. The reversal of 68219753143 is 34135791286.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68219753143 - 29 = 68219752631 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68219753153) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34109876571 + 34109876572.
It is an arithmetic number, because the mean of its divisors is an integer number (34109876572).
Almost surely, 268219753143 is an apocalyptic number.
68219753143 is a deficient number, since it is larger than the sum of its proper divisors (1).
68219753143 is an equidigital number, since it uses as much as digits as its factorization.
68219753143 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1088640, while the sum is 49.
The spelling of 68219753143 in words is "sixty-eight billion, two hundred nineteen million, seven hundred fifty-three thousand, one hundred forty-three".
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