Base | Representation |
---|---|
bin | 100010010111… |
… | …1001101101110 |
3 | 1020220110200010 |
4 | 1010233031232 |
5 | 14103103212 |
6 | 1442114050 |
7 | 306106026 |
oct | 104571556 |
9 | 36813603 |
10 | 18019182 |
11 | a198095 |
12 | 604b926 |
13 | 396b94c |
14 | 2570a86 |
15 | 18ae03c |
hex | 112f36e |
18019182 has 32 divisors (see below), whose sum is σ = 38142720. Its totient is φ = 5659200.
The previous prime is 18019159. The next prime is 18019223. The reversal of 18019182 is 28191081.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29682 + ... + 30282.
It is an arithmetic number, because the mean of its divisors is an integer number (1191960).
Almost surely, 218019182 is an apocalyptic number.
18019182 is an abundant number, since it is smaller than the sum of its proper divisors (20123538).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18019182 is a wasteful number, since it uses less digits than its factorization.
18019182 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 888.
The product of its (nonzero) digits is 1152, while the sum is 30.
The square root of 18019182 is about 4244.9007055525. The cubic root of 18019182 is about 262.1672009294.
The spelling of 18019182 in words is "eighteen million, nineteen thousand, one hundred eighty-two".
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