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250212085 = 550042417
BaseRepresentation
bin11101110100111…
…10111011110101
3122102211002110021
432322132323311
51003023241320
640454525141
76125524204
oct1672367365
9572732407
10250212085
11119269052
126b9667b1
133cab80b6
142533323b
1516e76daa
hexee9eef5

250212085 has 4 divisors (see below), whose sum is σ = 300254508. Its totient is φ = 200169664.

The previous prime is 250212071. The next prime is 250212113. The reversal of 250212085 is 580212052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92910321 + 157301764 = 9639^2 + 12542^2 .

It is a cyclic number.

It is not a de Polignac number, because 250212085 - 27 = 250211957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25021204 + ... + 25021213.

It is an arithmetic number, because the mean of its divisors is an integer number (75063627).

Almost surely, 2250212085 is an apocalyptic number.

It is an amenable number.

250212085 is a deficient number, since it is larger than the sum of its proper divisors (50042423).

250212085 is an equidigital number, since it uses as much as digits as its factorization.

250212085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50042422.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 250212085 is about 15818.0935956265. The cubic root of 250212085 is about 630.1386148339.

The spelling of 250212085 in words is "two hundred fifty million, two hundred twelve thousand, eighty-five".

Divisors: 1 5 50042417 250212085