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2211325 = 52197449
BaseRepresentation
bin1000011011110111111101
311011100100221
420123313331
51031230300
6115221341
724540004
oct10336775
94140327
102211325
111280446
128a7851
135c569c
14417c3b
152da31a
hex21bdfd

2211325 has 12 divisors (see below), whose sum is σ = 2762100. Its totient is φ = 1756160.

The previous prime is 2211281. The next prime is 2211329. The reversal of 2211325 is 5231122.

It can be written as a sum of positive squares in 6 ways, for example, as 120409 + 2090916 = 347^2 + 1446^2 .

It is not a de Polignac number, because 2211325 - 213 = 2203133 is a prime.

2211325 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2211299 and 2211308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4701 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (230175).

22211325 is an apocalyptic number.

2211325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2211325 is a deficient number, since it is larger than the sum of its proper divisors (550775).

2211325 is a wasteful number, since it uses less digits than its factorization.

2211325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 651 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 2211325 is about 1487.0524536814. The cubic root of 2211325 is about 130.2819325064.

Adding to 2211325 its reverse (5231122), we get a palindrome (7442447).

The spelling of 2211325 in words is "two million, two hundred eleven thousand, three hundred twenty-five".

Divisors: 1 5 25 197 449 985 2245 4925 11225 88453 442265 2211325