Base | Representation |
---|---|
bin | 100010100110… |
… | …1011010111110 |
3 | 1021010202101122 |
4 | 1011031122332 |
5 | 14121033120 |
6 | 1444510542 |
7 | 310132532 |
oct | 105153276 |
9 | 37122348 |
10 | 18142910 |
11 | a272045 |
12 | 60ab452 |
13 | 39b3066 |
14 | 25a3bc2 |
15 | 18d5a25 |
hex | 114d6be |
18142910 has 64 divisors (see below), whose sum is σ = 37558080. Its totient is φ = 6266880.
The previous prime is 18142879. The next prime is 18142919. The reversal of 18142910 is 1924181.
It is a self number, because there is not a number n which added to its sum of digits gives 18142910.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18142919) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132362 + ... + 132498.
It is an arithmetic number, because the mean of its divisors is an integer number (586845).
Almost surely, 218142910 is an apocalyptic number.
18142910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18142910 is an abundant number, since it is smaller than the sum of its proper divisors (19415170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18142910 is a wasteful number, since it uses less digits than its factorization.
18142910 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 221.
The product of its (nonzero) digits is 576, while the sum is 26.
The square root of 18142910 is about 4259.4494949465. The cubic root of 18142910 is about 262.7658862995.
The spelling of 18142910 in words is "eighteen million, one hundred forty-two thousand, nine hundred ten".
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