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2006225 = 52136173
BaseRepresentation
bin111101001110011010001
310202221000122
413221303101
51003144400
6111000025
723024024
oct7516321
93687018
102006225
111150341
12809015
13553220
143a31bb
15299685
hex1e9cd1

2006225 has 12 divisors (see below), whose sum is σ = 2679516. Its totient is φ = 1481280.

The previous prime is 2006201. The next prime is 2006231. The reversal of 2006225 is 5226002.

It can be written as a sum of positive squares in 6 ways, for example, as 802816 + 1203409 = 896^2 + 1097^2 .

It is a de Polignac number, because none of the positive numbers 2k-2006225 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

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, 2762 + ... + 3411.

It is an arithmetic number, because the mean of its divisors is an integer number (223293).

22006225 is an apocalyptic number.

2006225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2006225 is a deficient number, since it is larger than the sum of its proper divisors (673291).

2006225 is a wasteful number, since it uses less digits than its factorization.

2006225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196 (or 6191 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2006225 is about 1416.4127223377. The cubic root of 2006225 is about 126.1226864137.

The spelling of 2006225 in words is "two million, six thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 6173 30865 80249 154325 401245 2006225