Base | Representation |
---|---|
bin | 111111100100101001… |
… | …100111001010101011 |
3 | 20112012012101221012221 |
4 | 333210221213022223 |
5 | 2104244204414034 |
6 | 51205234014511 |
7 | 4634363502511 |
oct | 774451471253 |
9 | 215165357187 |
10 | 68260623019 |
11 | 26a49384436 |
12 | 11290417437 |
13 | 658ac91cc4 |
14 | 3437a004b1 |
15 | 1b97a7ebb4 |
hex | fe4a672ab |
68260623019 has 2 divisors, whose sum is σ = 68260623020. Its totient is φ = 68260623018.
The previous prime is 68260622977. The next prime is 68260623029. The reversal of 68260623019 is 91032606286.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68260623019 - 217 = 68260491947 is a prime.
It is a super-2 number, since 2×682606230192 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (68260623029) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34130311509 + 34130311510.
It is an arithmetic number, because the mean of its divisors is an integer number (34130311510).
Almost surely, 268260623019 is an apocalyptic number.
68260623019 is a deficient number, since it is larger than the sum of its proper divisors (1).
68260623019 is an equidigital number, since it uses as much as digits as its factorization.
68260623019 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 186624, while the sum is 43.
The spelling of 68260623019 in words is "sixty-eight billion, two hundred sixty million, six hundred twenty-three thousand, nineteen".
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