Base | Representation |
---|---|
bin | 1000011110001100011110 |
3 | 11011211101222 |
4 | 20132030132 |
5 | 1032031310 |
6 | 115333342 |
7 | 24606503 |
oct | 10361436 |
9 | 4154358 |
10 | 2220830 |
11 | 12875a7 |
12 | 8b1252 |
13 | 5c9b01 |
14 | 41b4aa |
15 | 2dd055 |
hex | 21e31e |
2220830 has 16 divisors (see below), whose sum is σ = 4015440. Its totient is φ = 884352.
The previous prime is 2220787. The next prime is 2220839. The reversal of 2220830 is 380222.
2220830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 2220799 and 2220808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2220839) by changing a digit.
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, 3041 + ... + 3699.
It is an arithmetic number, because the mean of its divisors is an integer number (250965).
22220830 is an apocalyptic number.
2220830 is a deficient number, since it is larger than the sum of its proper divisors (1794610).
2220830 is a wasteful number, since it uses less digits than its factorization.
2220830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1003.
The product of its (nonzero) digits is 192, while the sum is 17.
The square root of 2220830 is about 1490.2449463092. The cubic root of 2220830 is about 130.4683305173.
The spelling of 2220830 in words is "two million, two hundred twenty thousand, eight hundred thirty".
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