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8385225 = 352234861
BaseRepresentation
bin11111111111001011001001
3120210000100220
4133333023021
54121311400
6455420253
7131162502
oct37771311
916700326
108385225
114807a42
122984689
131977894
141183ba9
15b097a0
hex7ff2c9

8385225 has 24 divisors (see below), whose sum is σ = 14469312. Its totient is φ = 4276800.

The previous prime is 8385217. The next prime is 8385239. The reversal of 8385225 is 5225838.

It is not a de Polignac number, because 8385225 - 23 = 8385217 is a prime.

It is a Curzon number.

8385225 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (602888).

Almost surely, 28385225 is an apocalyptic number.

It is an amenable number.

8385225 is a deficient number, since it is larger than the sum of its proper divisors (6084087).

8385225 is a wasteful number, since it uses less digits than its factorization.

8385225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897 (or 4892 counting only the distinct ones).

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

The square root of 8385225 is about 2895.7252977449. The cubic root of 8385225 is about 203.1600168428.

The spelling of 8385225 in words is "eight million, three hundred eighty-five thousand, two hundred twenty-five".

Divisors: 1 3 5 15 23 25 69 75 115 345 575 1725 4861 14583 24305 72915 111803 121525 335409 364575 559015 1677045 2795075 8385225