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2195225 = 52277317
BaseRepresentation
bin1000010111111100011001
311010112021122
420113330121
51030221400
6115015025
724442034
oct10277431
94115248
102195225
11126a33a
1289a475
135bb266
1441201b
152d5685
hex217f19

2195225 has 12 divisors (see below), whose sum is σ = 2740524. Its totient is φ = 1744320.

The previous prime is 2195201. The next prime is 2195233. The reversal of 2195225 is 5225912.

It can be written as a sum of positive squares in 6 ways, for example, as 687241 + 1507984 = 829^2 + 1228^2 .

It is not a de Polignac number, because 2195225 - 210 = 2194201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2195194 and 2195203.

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, 6767 + ... + 7083.

It is an arithmetic number, because the mean of its divisors is an integer number (228377).

22195225 is an apocalyptic number.

2195225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2195225 is a deficient number, since it is larger than the sum of its proper divisors (545299).

2195225 is a wasteful number, since it uses less digits than its factorization.

2195225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 599 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 2195225 is about 1481.6291708791. The cubic root of 2195225 is about 129.9649807054.

The spelling of 2195225 in words is "two million, one hundred ninety-five thousand, two hundred twenty-five".

Divisors: 1 5 25 277 317 1385 1585 6925 7925 87809 439045 2195225