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1180225 = 52172777
BaseRepresentation
bin100100000001001000001
32012221222001
410200021001
5300231400
641144001
713013614
oct4401101
92187861
101180225
117367a2
1248b001
13324277
1422a17b
15184a6a
hex120241

1180225 has 12 divisors (see below), whose sum is σ = 1550124. Its totient is φ = 888320.

The previous prime is 1180219. The next prime is 1180237. The reversal of 1180225 is 5220811.

It can be written as a sum of positive squares in 6 ways, for example, as 39601 + 1140624 = 199^2 + 1068^2 .

It is a de Polignac number, because none of the positive numbers 2k-1180225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 964 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (129177).

21180225 is an apocalyptic number.

It is an amenable number.

1180225 is a deficient number, since it is larger than the sum of its proper divisors (369899).

1180225 is a wasteful number, since it uses less digits than its factorization.

1180225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1180225 is about 1086.3816088281. The cubic root of 1180225 is about 105.6788965512.

The spelling of 1180225 in words is "one million, one hundred eighty thousand, two hundred twenty-five".

Divisors: 1 5 17 25 85 425 2777 13885 47209 69425 236045 1180225