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2005324225 = 5280212969
BaseRepresentation
bin111011110000110…
…1101000111000001
312011202101000200121
41313201231013001
513101330333400
6530553020241
7100456655212
oct16741550701
95152330617
102005324225
11939a53853
1247b6b4681
1325c5bc8a8
14150483409
15bb0b521a
hex7786d1c1

2005324225 has 6 divisors (see below), whose sum is σ = 2486602070. Its totient is φ = 1604259360.

The previous prime is 2005324193. The next prime is 2005324303. The reversal of 2005324225 is 5224235002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 149523984 + 1855800241 = 12228^2 + 43079^2 .

It is not a de Polignac number, because 2005324225 - 25 = 2005324193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 80212969 = 2005324225 / (2 + 0 + 0 + 5 + 3 + 2 + 4 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2005324225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40106460 + ... + 40106509.

Almost surely, 22005324225 is an apocalyptic number.

2005324225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2005324225 is a deficient number, since it is larger than the sum of its proper divisors (481277845).

2005324225 is an equidigital number, since it uses as much as digits as its factorization.

2005324225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80212979 (or 80212974 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2005324225 is about 44780.8466311212. The cubic root of 2005324225 is about 1261.0380764557.

Adding to 2005324225 its reverse (5224235002), we get a palindrome (7229559227).

The spelling of 2005324225 in words is "two billion, five million, three hundred twenty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 80212969 401064845 2005324225