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2213312111 = 7928016609
BaseRepresentation
bin1000001111101100…
…0111011001101111
312201020201220102122
42003323013121233
514013101441421
61003342543155
7105563561663
oct20373073157
95636656378
102213312111
11a363a216a
12519297abb
1329371294a
1416dd448a3
15ce49b2ab
hex83ec766f

2213312111 has 4 divisors (see below), whose sum is σ = 2241328800. Its totient is φ = 2185295424.

The previous prime is 2213312083. The next prime is 2213312137. The reversal of 2213312111 is 1112133122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2213312111 - 26 = 2213312047 is a prime.

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 2213312111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213312411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14008226 + ... + 14008383.

It is an arithmetic number, because the mean of its divisors is an integer number (560332200).

Almost surely, 22213312111 is an apocalyptic number.

2213312111 is a deficient number, since it is larger than the sum of its proper divisors (28016689).

2213312111 is an equidigital number, since it uses as much as digits as its factorization.

2213312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28016688.

The product of its digits is 72, while the sum is 17.

The square root of 2213312111 is about 47045.8511560796. The cubic root of 2213312111 is about 1303.2094488657.

Adding to 2213312111 its reverse (1112133122), we get a palindrome (3325445233).

The spelling of 2213312111 in words is "two billion, two hundred thirteen million, three hundred twelve thousand, one hundred eleven".

Divisors: 1 79 28016609 2213312111