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8205225 = 352715629
BaseRepresentation
bin11111010011001110101001
3120102212110020
4133103032221
54100031400
6451511053
7126512640
oct37231651
916385406
108205225
1146a4786
1228b8489
131913982
141138357
15ac12a0
hex7d33a9

8205225 has 24 divisors (see below), whose sum is σ = 15504960. Its totient is φ = 3750720.

The previous prime is 8205221. The next prime is 8205233. The reversal of 8205225 is 5225028.

8205225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8205225 - 22 = 8205221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8205195 and 8205204.

It is not an unprimeable number, because it can be changed into a prime (8205221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7290 + ... + 8339.

It is an arithmetic number, because the mean of its divisors is an integer number (646040).

Almost surely, 28205225 is an apocalyptic number.

It is an amenable number.

8205225 is a deficient number, since it is larger than the sum of its proper divisors (7299735).

8205225 is a wasteful number, since it uses less digits than its factorization.

8205225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15649 (or 15644 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 8205225 is about 2864.4763919432. The cubic root of 8205225 is about 201.6957891903.

The spelling of 8205225 in words is "eight million, two hundred five thousand, two hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 15629 46887 78145 109403 234435 328209 390725 547015 1172175 1641045 2735075 8205225