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2232302213 = 17312903481
BaseRepresentation
bin1000010100001110…
…0011101010000101
312202120110200221202
42011003203222011
514032432132323
61005301552245
7106214153501
oct20503435205
95676420852
102232302213
11a46092769
12523715685
132976314ab
14172689301
15d0e9cd28
hex850e3a85

2232302213 has 4 divisors (see below), whose sum is σ = 2245205868. Its totient is φ = 2219398560.

The previous prime is 2232302203. The next prime is 2232302227. The reversal of 2232302213 is 3122032322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3122032322 = 21561016161.

It can be written as a sum of positive squares in 2 ways, for example, as 1729062724 + 503239489 = 41582^2 + 22433^2 .

It is a cyclic number.

It is not a de Polignac number, because 2232302213 - 24 = 2232302197 is a prime.

It is a super-3 number, since 3×22323022133 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232302203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6451568 + ... + 6451913.

It is an arithmetic number, because the mean of its divisors is an integer number (561301467).

Almost surely, 22232302213 is an apocalyptic number.

It is an amenable number.

2232302213 is a deficient number, since it is larger than the sum of its proper divisors (12903655).

2232302213 is a wasteful number, since it uses less digits than its factorization.

2232302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12903654.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2232302213 is about 47247.2455599266. The cubic root of 2232302213 is about 1306.9259960593.

Adding to 2232302213 its reverse (3122032322), we get a palindrome (5354334535).

The spelling of 2232302213 in words is "two billion, two hundred thirty-two million, three hundred two thousand, two hundred thirteen".

Divisors: 1 173 12903481 2232302213