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8224533 = 32979421
BaseRepresentation
bin11111010111111100010101
3120110211221100
4133113330111
54101141113
6452140313
7126623142
oct37277425
916424840
108224533
114708239
122907699
13191c6b5
1411413c9
15ac6d73
hex7d7f15

8224533 has 12 divisors (see below), whose sum is σ = 12003628. Its totient is φ = 5425920.

The previous prime is 8224529. The next prime is 8224537. The reversal of 8224533 is 3354228.

It is an interprime number because it is at equal distance from previous prime (8224529) and next prime (8224537).

It can be written as a sum of positive squares in 2 ways, for example, as 3175524 + 5049009 = 1782^2 + 2247^2 .

It is not a de Polignac number, because 8224533 - 22 = 8224529 is a prime.

It is a Duffinian number.

8224533 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8224497 and 8224506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8224537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3838 + ... + 5583.

Almost surely, 28224533 is an apocalyptic number.

It is an amenable number.

8224533 is a deficient number, since it is larger than the sum of its proper divisors (3779095).

8224533 is a wasteful number, since it uses less digits than its factorization.

8224533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524 (or 9521 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 8224533 is about 2867.8446610652. The cubic root of 8224533 is about 201.8538710486.

The spelling of 8224533 in words is "eight million, two hundred twenty-four thousand, five hundred thirty-three".

Divisors: 1 3 9 97 291 873 9421 28263 84789 913837 2741511 8224533