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2662213 = 8533121
BaseRepresentation
bin1010001001111101000101
312000020212111
422021331011
51140142323
6133021021
731425361
oct12117505
95006774
102662213
111559184
12a84771
13722998
144d42a1
15378c0d
hex289f45

2662213 has 4 divisors (see below), whose sum is σ = 2666188. Its totient is φ = 2658240.

The previous prime is 2662211. The next prime is 2662271. The reversal of 2662213 is 3122662.

It is a happy number.

2662213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47524 + 2614689 = 218^2 + 1617^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662213 - 21 = 2662211 is a prime.

It is a Duffinian number.

2662213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662211) 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, 708 + ... + 2413.

It is an arithmetic number, because the mean of its divisors is an integer number (666547).

22662213 is an apocalyptic number.

It is an amenable number.

2662213 is a deficient number, since it is larger than the sum of its proper divisors (3975).

2662213 is an equidigital number, since it uses as much as digits as its factorization.

2662213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3974.

The product of its digits is 864, while the sum is 22.

The square root of 2662213 is about 1631.6289406602. The cubic root of 2662213 is about 138.5950118524.

Adding to 2662213 its reverse (3122662), we get a palindrome (5784875).

The spelling of 2662213 in words is "two million, six hundred sixty-two thousand, two hundred thirteen".

Divisors: 1 853 3121 2662213