Base | Representation |
---|---|
bin | 100010011000… |
… | …1001000000010 |
3 | 1020220212102001 |
4 | 1010301020002 |
5 | 14103331020 |
6 | 1442214214 |
7 | 306140611 |
oct | 104611002 |
9 | 36825361 |
10 | 18027010 |
11 | a1a2a61 |
12 | 605436a |
13 | 3972391 |
14 | 2573878 |
15 | 18b150a |
hex | 1131202 |
18027010 has 32 divisors (see below), whose sum is σ = 34617600. Its totient is φ = 6739200.
The previous prime is 18026959. The next prime is 18027011. The reversal of 18027010 is 1072081.
18027010 is a nontrivial binomial coefficient, being equal to C(6005, 2).
It is a Harshad number since it is a multiple of its sum of digits (19).
It is not an unprimeable number, because it can be changed into a prime (18027011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14410 + ... + 15610.
It is an arithmetic number, because the mean of its divisors is an integer number (1081800).
Almost surely, 218027010 is an apocalyptic number.
18027010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18027010 is the 6004-th triangular number.
18027010 is the 2002-nd centered nonagonal number.
18027010 is a deficient number, since it is larger than the sum of its proper divisors (16590590).
18027010 is a wasteful number, since it uses less digits than its factorization.
18027010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1306.
The product of its (nonzero) digits is 112, while the sum is 19.
The square root of 18027010 is about 4245.8226529143. The cubic root of 18027010 is about 262.2051595104.
Adding to 18027010 its reverse (1072081), we get a palindrome (19099091).
The spelling of 18027010 in words is "eighteen million, twenty-seven thousand, ten".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •