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4772213 = 6178233
BaseRepresentation
bin10010001101000101110101
322222110020122
4102031011311
52210202323
6250141325
755364105
oct22150565
98873218
104772213
11276a486
121721845
13cb11c4
148c3205
15643ec8
hex48d175

4772213 has 4 divisors (see below), whose sum is σ = 4850508. Its totient is φ = 4693920.

The previous prime is 4772191. The next prime is 4772227. The reversal of 4772213 is 3122774.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97969 + 4674244 = 313^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 4772213 - 220 = 3723637 is a prime.

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 (4772413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39056 + ... + 39177.

It is an arithmetic number, because the mean of its divisors is an integer number (1212627).

Almost surely, 24772213 is an apocalyptic number.

It is an amenable number.

4772213 is a deficient number, since it is larger than the sum of its proper divisors (78295).

4772213 is an equidigital number, since it uses as much as digits as its factorization.

4772213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78294.

The product of its digits is 2352, while the sum is 26.

The square root of 4772213 is about 2184.5395395827. The cubic root of 4772213 is about 168.3603964810.

Adding to 4772213 its reverse (3122774), we get a palindrome (7894987).

The spelling of 4772213 in words is "four million, seven hundred seventy-two thousand, two hundred thirteen".

Divisors: 1 61 78233 4772213