Base | Representation |
---|---|
bin | 10001011101011110… |
… | …010101011001001111 |
3 | 1210101120212021100102 |
4 | 101131132111121033 |
5 | 301344003232343 |
6 | 12340204521315 |
7 | 1232411145104 |
oct | 213536253117 |
9 | 53346767312 |
10 | 18748102223 |
11 | 7a508a6764 |
12 | 377285023b |
13 | 19ca212316 |
14 | c9bd26aab |
15 | 74adcd3b8 |
hex | 45d79564f |
18748102223 has 2 divisors, whose sum is σ = 18748102224. Its totient is φ = 18748102222.
The previous prime is 18748102193. The next prime is 18748102229. The reversal of 18748102223 is 32220184781.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 18748102223 - 224 = 18731325007 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (18748102229) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9374051111 + 9374051112.
It is an arithmetic number, because the mean of its divisors is an integer number (9374051112).
Almost surely, 218748102223 is an apocalyptic number.
18748102223 is a deficient number, since it is larger than the sum of its proper divisors (1).
18748102223 is an equidigital number, since it uses as much as digits as its factorization.
18748102223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 43008, while the sum is 38.
The spelling of 18748102223 in words is "eighteen billion, seven hundred forty-eight million, one hundred two thousand, two hundred twenty-three".
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