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250542130 = 2553472721
BaseRepresentation
bin11101110111011…
…11100000110010
3122110102212012011
432323233200302
51003114322010
640505553134
76131400346
oct1673574062
9573385164
10250542130
11119474013
126baa57aa
133cba23a7
14253bb626
1516edea8a
hexeeef832

250542130 has 16 divisors (see below), whose sum is σ = 459485784. Its totient is φ = 98325760.

The previous prime is 250542121. The next prime is 250542139. The reversal of 250542130 is 31245052.

It is an interprime number because it is at equal distance from previous prime (250542121) and next prime (250542139).

It can be written as a sum of positive squares in 4 ways, for example, as 149157369 + 101384761 = 12213^2 + 10069^2 .

It is not an unprimeable number, because it can be changed into a prime (250542139) 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 7 ways as a sum of consecutive naturals, for example, 235831 + ... + 236890.

Almost surely, 2250542130 is an apocalyptic number.

250542130 is a deficient number, since it is larger than the sum of its proper divisors (208943654).

250542130 is a wasteful number, since it uses less digits than its factorization.

250542130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472781.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 250542130 is about 15828.5226726944. The cubic root of 250542130 is about 630.4155568564.

Adding to 250542130 its reverse (31245052), we get a palindrome (281787182).

The spelling of 250542130 in words is "two hundred fifty million, five hundred forty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 472721 945442 2363605 4727210 25054213 50108426 125271065 250542130