Base | Representation |
---|---|
bin | 10001011101110101… |
… | …001111000000100011 |
3 | 1210102000011021010112 |
4 | 101131311033000203 |
5 | 301402022333004 |
6 | 12340541321535 |
7 | 1232513160032 |
oct | 213565170043 |
9 | 53360137115 |
10 | 18754105379 |
11 | 7a54226a49 |
12 | 37748662ab |
13 | 19cb534899 |
14 | c9ca4a719 |
15 | 74b6b6e6e |
hex | 45dd4f023 |
18754105379 has 4 divisors (see below), whose sum is σ = 18936184176. Its totient is φ = 18572026584.
The previous prime is 18754105361. The next prime is 18754105397. The reversal of 18754105379 is 97350145781.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (18754105361) and next prime (18754105397).
It is a cyclic number.
It is not a de Polignac number, because 18754105379 - 224 = 18737328163 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18754155379) 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 in 3 ways as a sum of consecutive naturals, for example, 91039244 + ... + 91039449.
It is an arithmetic number, because the mean of its divisors is an integer number (4734046044).
Almost surely, 218754105379 is an apocalyptic number.
18754105379 is a deficient number, since it is larger than the sum of its proper divisors (182078797).
18754105379 is a wasteful number, since it uses less digits than its factorization.
18754105379 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 182078796.
The product of its (nonzero) digits is 1058400, while the sum is 50.
The spelling of 18754105379 in words is "eighteen billion, seven hundred fifty-four million, one hundred five thousand, three hundred seventy-nine".
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