Base | Representation |
---|---|
bin | 100100001101… |
… | …0110100010110 |
3 | 1022201111110001 |
4 | 1020122310112 |
5 | 14324443324 |
6 | 1514521514 |
7 | 320235364 |
oct | 110326426 |
9 | 38644401 |
10 | 18984214 |
11 | a797137 |
12 | 643629a |
13 | 3c18c82 |
14 | 2742634 |
15 | 19eee44 |
hex | 121ad16 |
18984214 has 16 divisors (see below), whose sum is σ = 29638656. Its totient is φ = 9109800.
The previous prime is 18984187. The next prime is 18984233. The reversal of 18984214 is 41248981.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6669 + ... + 9079.
It is an arithmetic number, because the mean of its divisors is an integer number (1852416).
Almost surely, 218984214 is an apocalyptic number.
18984214 is a deficient number, since it is larger than the sum of its proper divisors (10654442).
18984214 is a wasteful number, since it uses less digits than its factorization.
18984214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2571.
The product of its digits is 18432, while the sum is 37.
The square root of 18984214 is about 4357.0877888792. The cubic root of 18984214 is about 266.7662437147.
The spelling of 18984214 in words is "eighteen million, nine hundred eighty-four thousand, two hundred fourteen".
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