Base | Representation |
---|---|
bin | 1000001100100010100111… |
… | …01100100100011111110001 |
3 | 2100210222201220211002020222 |
4 | 10012101103230210133301 |
5 | 4330242240230414034 |
6 | 102155405234542425 |
7 | 3540060616343543 |
oct | 406212354443761 |
9 | 70728656732228 |
10 | 18023086966769 |
11 | 5819603806085 |
12 | 2030bb3437a15 |
13 | a09753b3ac61 |
14 | 464471a57693 |
15 | 213c4db4612e |
hex | 106453b247f1 |
18023086966769 has 2 divisors, whose sum is σ = 18023086966770. Its totient is φ = 18023086966768.
The previous prime is 18023086966751. The next prime is 18023086966873. The reversal of 18023086966769 is 96766968032081.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 14570595951025 + 3452491015744 = 3817145^2 + 1858088^2 .
It is an emirp because it is prime and its reverse (96766968032081) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-18023086966769 is a prime.
It is a super-2 number, since 2×180230869667692 (a number of 27 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (18023086966739) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9011543483384 + 9011543483385.
It is an arithmetic number, because the mean of its divisors is an integer number (9011543483385).
Almost surely, 218023086966769 is an apocalyptic number.
It is an amenable number.
18023086966769 is a deficient number, since it is larger than the sum of its proper divisors (1).
18023086966769 is an equidigital number, since it uses as much as digits as its factorization.
18023086966769 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 282175488, while the sum is 71.
The spelling of 18023086966769 in words is "eighteen trillion, twenty-three billion, eighty-six million, nine hundred sixty-six thousand, seven hundred sixty-nine".
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