Base | Representation |
---|---|
bin | 10001011110010111… |
… | …101010100000110001 |
3 | 1210102122010210212011 |
4 | 101132113222200301 |
5 | 301411330142204 |
6 | 12341503002521 |
7 | 1232652660424 |
oct | 213627524061 |
9 | 53378123764 |
10 | 18763130929 |
11 | 7a59330a84 |
12 | 3777899441 |
13 | 1a00374a4a |
14 | c9dd199bb |
15 | 74c39b304 |
hex | 45e5ea831 |
18763130929 has 2 divisors, whose sum is σ = 18763130930. Its totient is φ = 18763130928.
The previous prime is 18763130891. The next prime is 18763130957. The reversal of 18763130929 is 92903136781.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18110430625 + 652700304 = 134575^2 + 25548^2 .
It is a cyclic number.
It is not a de Polignac number, because 18763130929 - 219 = 18762606641 is a prime.
It is not a weakly prime, because it can be changed into another prime (18763130999) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9381565464 + 9381565465.
It is an arithmetic number, because the mean of its divisors is an integer number (9381565465).
Almost surely, 218763130929 is an apocalyptic number.
It is an amenable number.
18763130929 is a deficient number, since it is larger than the sum of its proper divisors (1).
18763130929 is an equidigital number, since it uses as much as digits as its factorization.
18763130929 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 489888, while the sum is 49.
The spelling of 18763130929 in words is "eighteen billion, seven hundred sixty-three million, one hundred thirty thousand, nine hundred twenty-nine".
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