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1338213 = 33071453
BaseRepresentation
bin101000110101101100101
32111222200110
411012231211
5320310323
644403233
714242332
oct5065545
92458613
101338213
11834468
12546519
1337b156
1426b989
151b6793
hex146b65

1338213 has 8 divisors (see below), whose sum is σ = 1791328. Its totient is φ = 888624.

The previous prime is 1338167. The next prime is 1338217. The reversal of 1338213 is 3128331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1338213 - 29 = 1337701 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 1338213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338217) 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 7 ways as a sum of consecutive naturals, for example, 195 + ... + 1647.

It is an arithmetic number, because the mean of its divisors is an integer number (223916).

21338213 is an apocalyptic number.

It is an amenable number.

1338213 is a deficient number, since it is larger than the sum of its proper divisors (453115).

1338213 is a wasteful number, since it uses less digits than its factorization.

1338213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its digits is 432, while the sum is 21.

The square root of 1338213 is about 1156.8115663322. The cubic root of 1338213 is about 110.1983473676.

It can be divided in two parts, 1338 and 213, that added together give a palindrome (1551).

The spelling of 1338213 in words is "one million, three hundred thirty-eight thousand, two hundred thirteen".

Divisors: 1 3 307 921 1453 4359 446071 1338213