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250220244 = 22320851687
BaseRepresentation
bin11101110101000…
…00111011010100
3122102211111122110
432322200323110
51003024021434
640455031020
76125560041
oct1672407324
9572744573
10250220244
1111927419a
126b96b470
133cabba21
14253361c8
1516e794e9
hexeea0ed4

250220244 has 12 divisors (see below), whose sum is σ = 583847264. Its totient is φ = 83406744.

The previous prime is 250220237. The next prime is 250220279. The reversal of 250220244 is 442022052.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2502202442 = 125220341014839072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250220244.

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, 10425832 + ... + 10425855.

Almost surely, 2250220244 is an apocalyptic number.

It is an amenable number.

250220244 is an abundant number, since it is smaller than the sum of its proper divisors (333627020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250220244 is a wasteful number, since it uses less digits than its factorization.

250220244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20851694 (or 20851692 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 250220244 is about 15818.3514943878. The cubic root of 250220244 is about 630.1454640169.

Adding to 250220244 its reverse (442022052), we get a palindrome (692242296).

The spelling of 250220244 in words is "two hundred fifty million, two hundred twenty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 20851687 41703374 62555061 83406748 125110122 250220244