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222414213 = 3717623009
BaseRepresentation
bin11010100000111…
…00010110000101
3120111111210221110
431100130112011
5423414223323
634023035233
75340326640
oct1520342605
9514453843
10222414213
111046020aa
126259bb19
1337104558
1421778a57
15147d5793
hexd41c585

222414213 has 16 divisors (see below), whose sum is σ = 358853760. Its totient is φ = 119617536.

The previous prime is 222414191. The next prime is 222414223. The reversal of 222414213 is 312414222.

It is not a de Polignac number, because 222414213 - 26 = 222414149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222414213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222414223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311148 + ... + 311861.

It is an arithmetic number, because the mean of its divisors is an integer number (22428360).

Almost surely, 2222414213 is an apocalyptic number.

It is an amenable number.

222414213 is a deficient number, since it is larger than the sum of its proper divisors (136439547).

222414213 is a wasteful number, since it uses less digits than its factorization.

222414213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623036.

The product of its digits is 768, while the sum is 21.

The square root of 222414213 is about 14913.5580261720. The cubic root of 222414213 is about 605.8812492645.

Adding to 222414213 its reverse (312414222), we get a palindrome (534828435).

Subtracting 222414213 from its reverse (312414222), we obtain a palindrome (90000009).

The spelling of 222414213 in words is "two hundred twenty-two million, four hundred fourteen thousand, two hundred thirteen".

Divisors: 1 3 7 17 21 51 119 357 623009 1869027 4361063 10591153 13083189 31773459 74138071 222414213