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8224225 = 522314303
BaseRepresentation
bin11111010111110111100001
3120110211111221
4133113313201
54101133400
6452135041
7126622222
oct37276741
916424457
108224225
114707a89
122907481
13191c509
141141249
15ac6c1a
hex7d7de1

8224225 has 12 divisors (see below), whose sum is σ = 10642176. Its totient is φ = 6292880.

The previous prime is 8224219. The next prime is 8224259. The reversal of 8224225 is 5224228.

It is not a de Polignac number, because 8224225 - 221 = 6127073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 8224225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6577 + ... + 7726.

It is an arithmetic number, because the mean of its divisors is an integer number (886848).

Almost surely, 28224225 is an apocalyptic number.

It is an amenable number.

8224225 is a deficient number, since it is larger than the sum of its proper divisors (2417951).

8224225 is a wasteful number, since it uses less digits than its factorization.

8224225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14336 (or 14331 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 8224225 is about 2867.7909616986. The cubic root of 8224225 is about 201.8513512796.

The spelling of 8224225 in words is "eight million, two hundred twenty-four thousand, two hundred twenty-five".

Divisors: 1 5 23 25 115 575 14303 71515 328969 357575 1644845 8224225