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2195227 = 17139929
BaseRepresentation
bin1000010111111100011011
311010112021201
420113330123
51030221402
6115015031
724442036
oct10277433
94115251
102195227
11126a341
1289a477
135bb268
1441201d
152d5687
hex217f1b

2195227 has 8 divisors (see below), whose sum is σ = 2343600. Its totient is φ = 2049024.

The previous prime is 2195201. The next prime is 2195233. The reversal of 2195227 is 7225912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2195227 is a prime.

It is a Duffinian number.

2195227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2195195 and 2195204.

It is not an unprimeable number, because it can be changed into a prime (2195287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899 + ... + 2827.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

22195227 is an apocalyptic number.

2195227 is a deficient number, since it is larger than the sum of its proper divisors (148373).

2195227 is a wasteful number, since it uses less digits than its factorization.

2195227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its digits is 2520, while the sum is 28.

The square root of 2195227 is about 1481.6298458117. The cubic root of 2195227 is about 129.9650201744.

It can be divided in two parts, 21952 and 27, that multiplied together give a cube (592704 = 843).

The spelling of 2195227 in words is "two million, one hundred ninety-five thousand, two hundred twenty-seven".

Divisors: 1 17 139 929 2363 15793 129131 2195227