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8243223 = 323193619
BaseRepresentation
bin11111011100100000010111
3120111210120120
4133130200113
54102240343
6452403023
7130031502
oct37344027
916453516
108243223
11472028a
122916473
131928061
141148139
15acc683
hex7dc817

8243223 has 16 divisors (see below), whose sum is σ = 11546880. Its totient is φ = 5220864.

The previous prime is 8243219. The next prime is 8243227. The reversal of 8243223 is 3223428.

It is an interprime number because it is at equal distance from previous prime (8243219) and next prime (8243227).

It is not a de Polignac number, because 8243223 - 22 = 8243219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8243193 and 8243202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243227) 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 15 ways as a sum of consecutive naturals, for example, 13008 + ... + 13626.

It is an arithmetic number, because the mean of its divisors is an integer number (721680).

Almost surely, 28243223 is an apocalyptic number.

8243223 is a deficient number, since it is larger than the sum of its proper divisors (3303657).

8243223 is a wasteful number, since it uses less digits than its factorization.

8243223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its digits is 2304, while the sum is 24.

The square root of 8243223 is about 2871.1013566226. The cubic root of 8243223 is about 202.0066576246.

The spelling of 8243223 in words is "eight million, two hundred forty-three thousand, two hundred twenty-three".

Divisors: 1 3 23 69 193 579 619 1857 4439 13317 14237 42711 119467 358401 2747741 8243223