Search a number
-
+
2213230 = 251747277
BaseRepresentation
bin1000011100010101101110
311011102222111
420130111232
51031310410
6115234234
724545365
oct10342556
94142874
102213230
111281918
128a897a
135c6506
144187dc
152dab8a
hex21c56e

2213230 has 32 divisors (see below), whose sum is σ = 4323456. Its totient is φ = 812544.

The previous prime is 2213209. The next prime is 2213243. The reversal of 2213230 is 323122.

It is a happy number.

2213230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2213230.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7852 + ... + 8128.

It is an arithmetic number, because the mean of its divisors is an integer number (135108).

22213230 is an apocalyptic number.

2213230 is a deficient number, since it is larger than the sum of its proper divisors (2110226).

2213230 is a wasteful number, since it uses less digits than its factorization.

2213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2213230 is about 1487.6928446423. The cubic root of 2213230 is about 130.3193332875.

Adding to 2213230 its reverse (323122), we get a palindrome (2536352).

The spelling of 2213230 in words is "two million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 47 85 94 170 235 277 470 554 799 1385 1598 2770 3995 4709 7990 9418 13019 23545 26038 47090 65095 130190 221323 442646 1106615 2213230