Base | Representation |
---|---|
bin | 100010010111… |
… | …1000110011010 |
3 | 1020220110000210 |
4 | 1010233012122 |
5 | 14103044324 |
6 | 1442111550 |
7 | 306104460 |
oct | 104570632 |
9 | 36813023 |
10 | 18018714 |
11 | a1977aa |
12 | 604b5b6 |
13 | 396b67c |
14 | 2570830 |
15 | 18add29 |
hex | 112f19a |
18018714 has 16 divisors (see below), whose sum is σ = 41185728. Its totient is φ = 5148192.
The previous prime is 18018701. The next prime is 18018739. The reversal of 18018714 is 41781081.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214467 + ... + 214550.
It is an arithmetic number, because the mean of its divisors is an integer number (2574108).
Almost surely, 218018714 is an apocalyptic number.
18018714 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
18018714 is an abundant number, since it is smaller than the sum of its proper divisors (23167014).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18018714 is a wasteful number, since it uses less digits than its factorization.
18018714 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 429029.
The product of its (nonzero) digits is 1792, while the sum is 30.
The square root of 18018714 is about 4244.8455802302. The cubic root of 18018714 is about 262.1649312127.
Adding to 18018714 its reverse (41781081), we get a palindrome (59799795).
The spelling of 18018714 in words is "eighteen million, eighteen thousand, seven hundred fourteen".
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