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6841213 = 13152223
BaseRepresentation
bin11010000110001101111101
3110212120101021
4122012031331
53222404323
6402344141
7112102141
oct32061575
913776337
106841213
1139529a5
12235b051
131556b72
14ca1221
1590205d
hex68637d

6841213 has 4 divisors (see below), whose sum is σ = 6893568. Its totient is φ = 6788860.

The previous prime is 6841207. The next prime is 6841217. The reversal of 6841213 is 3121486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3121486 = 21560743.

It is a cyclic number.

It is not a de Polignac number, because 6841213 - 25 = 6841181 is a prime.

It is a super-2 number, since 2×68412132 = 93604390622738, which contains 22 as substring.

It is a Duffinian number.

6841213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6841217) 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, 25981 + ... + 26242.

It is an arithmetic number, because the mean of its divisors is an integer number (1723392).

Almost surely, 26841213 is an apocalyptic number.

It is an amenable number.

6841213 is a deficient number, since it is larger than the sum of its proper divisors (52355).

6841213 is a wasteful number, since it uses less digits than its factorization.

6841213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52354.

The product of its digits is 1152, while the sum is 25.

The square root of 6841213 is about 2615.5712569150. The cubic root of 6841213 is about 189.8356195985.

Adding to 6841213 its reverse (3121486), we get a palindrome (9962699).

The spelling of 6841213 in words is "six million, eight hundred forty-one thousand, two hundred thirteen".

Divisors: 1 131 52223 6841213