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3208225 = 52181709
BaseRepresentation
bin1100001111010000100001
320000222212011
430033100201
51310130400
6152432521
736161266
oct14172041
96028764
103208225
1118a1429
1210a8741
13884377
145d726d
154358ba
hex30f421

3208225 has 12 divisors (see below), whose sum is σ = 4005820. Its totient is φ = 2548800.

The previous prime is 3208213. The next prime is 3208253. The reversal of 3208225 is 5228023.

It can be written as a sum of positive squares in 6 ways, for example, as 1292769 + 1915456 = 1137^2 + 1384^2 .

It is not a de Polignac number, because 3208225 - 25 = 3208193 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3208196 and 3208205.

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, 4171 + ... + 4879.

Almost surely, 23208225 is an apocalyptic number.

It is an amenable number.

3208225 is a deficient number, since it is larger than the sum of its proper divisors (797595).

3208225 is a wasteful number, since it uses less digits than its factorization.

3208225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3208225 is about 1791.1518640249. The cubic root of 3208225 is about 147.4874067578.

The spelling of 3208225 in words is "three million, two hundred eight thousand, two hundred twenty-five".

Divisors: 1 5 25 181 709 905 3545 4525 17725 128329 641645 3208225