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226122213 = 3478915739
BaseRepresentation
bin11010111101001…
…01100111100101
3120202111012100210
431132211213211
5430341402323
634234330033
75414002302
oct1536454745
9522435323
10226122213
11106704a69
1263889919
1337b02235
14220620a9
1514cb9293
hexd7a59e5

226122213 has 8 divisors (see below), whose sum is σ = 301578400. Its totient is φ = 150707088.

The previous prime is 226122187. The next prime is 226122227. The reversal of 226122213 is 312221622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 226122213 - 28 = 226121957 is a prime.

It is a super-2 number, since 2×2261222132 = 102262510424034738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226122213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226122293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6498 + ... + 22236.

It is an arithmetic number, because the mean of its divisors is an integer number (37697300).

Almost surely, 2226122213 is an apocalyptic number.

It is an amenable number.

226122213 is a deficient number, since it is larger than the sum of its proper divisors (75456187).

226122213 is a wasteful number, since it uses less digits than its factorization.

226122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20531.

The product of its digits is 576, while the sum is 21.

The square root of 226122213 is about 15037.3605729197. The cubic root of 226122213 is about 609.2297121191.

Adding to 226122213 its reverse (312221622), we get a palindrome (538343835).

The spelling of 226122213 in words is "two hundred twenty-six million, one hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 3 4789 14367 15739 47217 75374071 226122213