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2822213 is a prime number
BaseRepresentation
bin1010110001000001000101
312022101100102
422301001011
51210302323
6140253445
732663012
oct12610105
95271312
102822213
111658409
12b41285
1377a764
14536709
153ab328
hex2b1045

2822213 has 2 divisors, whose sum is σ = 2822214. Its totient is φ = 2822212.

The previous prime is 2822207. The next prime is 2822233. The reversal of 2822213 is 3122282.

It is an a-pointer prime, because the next prime (2822233) can be obtained adding 2822213 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2765569 + 56644 = 1663^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 2822213 - 28 = 2821957 is a prime.

It is equal to p204905 and since 2822213 and 204905 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2822233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1411106 + 1411107.

It is an arithmetic number, because the mean of its divisors is an integer number (1411107).

22822213 is an apocalyptic number.

It is an amenable number.

2822213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2822213 is an equidigital number, since it uses as much as digits as its factorization.

2822213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 2822213 is about 1679.9443443162. The cubic root of 2822213 is about 141.3177115511.

Adding to 2822213 its reverse (3122282), we get a palindrome (5944495).

The spelling of 2822213 in words is "two million, eight hundred twenty-two thousand, two hundred thirteen".