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8538225 = 352113843
BaseRepresentation
bin100000100100…
…100001110001
3121001210020120
4200210201301
54141210400
6503000453
7132400533
oct40444161
917053216
108538225
114901993
122a39129
1319cc407
1411c3853
15b39ca0
hex824871

8538225 has 12 divisors (see below), whose sum is σ = 14116656. Its totient is φ = 4553680.

The previous prime is 8538223. The next prime is 8538227. The reversal of 8538225 is 5228358.

It is an interprime number because it is at equal distance from previous prime (8538223) and next prime (8538227).

It is not a de Polignac number, because 8538225 - 21 = 8538223 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

8538225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8538223) 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, 56847 + ... + 56996.

It is an arithmetic number, because the mean of its divisors is an integer number (1176388).

Almost surely, 28538225 is an apocalyptic number.

It is an amenable number.

8538225 is a deficient number, since it is larger than the sum of its proper divisors (5578431).

8538225 is a wasteful number, since it uses less digits than its factorization.

8538225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113856 (or 113851 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 8538225 is about 2922.0241272105. The cubic root of 8538225 is about 204.3882217035.

The spelling of 8538225 in words is "eight million, five hundred thirty-eight thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 113843 341529 569215 1707645 2846075 8538225