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50031225 = 3252222361
BaseRepresentation
bin1011111011011…
…0101001111001
310111010211221100
42332312221321
5100301444400
64544202013
71145154426
oct276665171
9114124840
1050031225
1126272222
1214909309
13a49969a
146904d4d
1545d4100
hex2fb6a79

50031225 has 18 divisors (see below), whose sum is σ = 89611886. Its totient is φ = 26683200.

The previous prime is 50031217. The next prime is 50031227. The reversal of 50031225 is 52213005.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4549689 + 45481536 = 2133^2 + 6744^2 .

It is not a de Polignac number, because 50031225 - 23 = 50031217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50031198 and 50031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50031227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 110956 + ... + 111405.

Almost surely, 250031225 is an apocalyptic number.

It is an amenable number.

50031225 is a deficient number, since it is larger than the sum of its proper divisors (39580661).

50031225 is a wasteful number, since it uses less digits than its factorization.

50031225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222377 (or 222369 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50031225 is about 7073.2754081825. The cubic root of 50031225 is about 368.4798231611.

The spelling of 50031225 in words is "fifty million, thirty-one thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 222361 667083 1111805 2001249 3335415 5559025 10006245 16677075 50031225