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22213030 = 2572231423
BaseRepresentation
bin101010010111…
…1000110100110
31112210112112211
41110233012212
521141304110
62112034034
7356544010
oct124570646
945715484
1022213030
11115a1a84
12753291a
1347a9808
142d431b0
151e3b98a
hex152f1a6

22213030 has 32 divisors (see below), whose sum is σ = 45932544. Its totient is φ = 7576416.

The previous prime is 22213007. The next prime is 22213049. The reversal of 22213030 is 3031222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22213030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14899 + ... + 16321.

It is an arithmetic number, because the mean of its divisors is an integer number (1435392).

Almost surely, 222213030 is an apocalyptic number.

22213030 is an abundant number, since it is smaller than the sum of its proper divisors (23719514).

22213030 is a wasteful number, since it uses less digits than its factorization.

22213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660.

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

The square root of 22213030 is about 4713.0701246640. The cubic root of 22213030 is about 281.1054513185.

Adding to 22213030 its reverse (3031222), we get a palindrome (25244252).

The spelling of 22213030 in words is "twenty-two million, two hundred thirteen thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 223 446 1115 1423 1561 2230 2846 3122 7115 7805 9961 14230 15610 19922 49805 99610 317329 634658 1586645 2221303 3173290 4442606 11106515 22213030