Base | Representation |
---|---|
bin | 1000010101111111011110 |
3 | 11010010022112 |
4 | 20111333132 |
5 | 1024442410 |
6 | 114514022 |
7 | 24406523 |
oct | 10257736 |
9 | 4103275 |
10 | 2187230 |
11 | 1264331 |
12 | 895912 |
13 | 5b7726 |
14 | 40d14a |
15 | 2d3105 |
hex | 215fde |
2187230 has 8 divisors (see below), whose sum is σ = 3937032. Its totient is φ = 874888.
The previous prime is 2187217. The next prime is 2187233. The reversal of 2187230 is 327812.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 2187196 and 2187205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2187233) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109352 + ... + 109371.
It is an arithmetic number, because the mean of its divisors is an integer number (492129).
22187230 is an apocalyptic number.
2187230 is a deficient number, since it is larger than the sum of its proper divisors (1749802).
2187230 is a wasteful number, since it uses less digits than its factorization.
2187230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 218730.
The product of its (nonzero) digits is 672, while the sum is 23.
The square root of 2187230 is about 1478.9286662987. The cubic root of 2187230 is about 129.8070114754.
The spelling of 2187230 in words is "two million, one hundred eighty-seven thousand, two hundred thirty".
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