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8357225 = 52334289
BaseRepresentation
bin11111111000010101101001
3120201120221212
4133320111221
54114412400
6455042505
7131015042
oct37702551
916646855
108357225
1147989a8
122970435
131967c06
1411778c9
15b01335
hex7f8569

8357225 has 6 divisors (see below), whose sum is σ = 10362990. Its totient is φ = 6685760.

The previous prime is 8357203. The next prime is 8357233. The reversal of 8357225 is 5227538.

It can be written as a sum of positive squares in 3 ways, for example, as 85849 + 8271376 = 293^2 + 2876^2 .

It is not a de Polignac number, because 8357225 - 28 = 8356969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8357191 and 8357200.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167120 + ... + 167169.

It is an arithmetic number, because the mean of its divisors is an integer number (1727165).

Almost surely, 28357225 is an apocalyptic number.

It is an amenable number.

8357225 is a deficient number, since it is larger than the sum of its proper divisors (2005765).

8357225 is a wasteful number, since it uses less digits than its factorization.

8357225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334299 (or 334294 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 8357225 is about 2890.8865422220. The cubic root of 8357225 is about 202.9336335748.

The spelling of 8357225 in words is "eight million, three hundred fifty-seven thousand, two hundred twenty-five".

Divisors: 1 5 25 334289 1671445 8357225