Base | Representation |
---|---|
bin | 10000110010100111… |
… | …101011000111000011 |
3 | 1201112110222201010012 |
4 | 100302213223013003 |
5 | 243410424131204 |
6 | 12141002455135 |
7 | 1205531035514 |
oct | 206247530703 |
9 | 51473881105 |
10 | 18029130179 |
11 | 7711a79395 |
12 | 35b1b044ab |
13 | 191428c688 |
14 | c30650a0b |
15 | 707c0e76e |
hex | 4329eb1c3 |
18029130179 has 4 divisors (see below), whose sum is σ = 18029657976. Its totient is φ = 18028602384.
The previous prime is 18029130169. The next prime is 18029130211. The reversal of 18029130179 is 97103192081.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 18029130179 - 228 = 17760694723 is a prime.
It is a super-2 number, since 2×180291301792 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18029130109) 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, 208829 + ... + 282254.
It is an arithmetic number, because the mean of its divisors is an integer number (4507414494).
Almost surely, 218029130179 is an apocalyptic number.
18029130179 is a deficient number, since it is larger than the sum of its proper divisors (527797).
18029130179 is an equidigital number, since it uses as much as digits as its factorization.
18029130179 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 527796.
The product of its (nonzero) digits is 27216, while the sum is 41.
The spelling of 18029130179 in words is "eighteen billion, twenty-nine million, one hundred thirty thousand, one hundred seventy-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •