Base | Representation |
---|---|
bin | 11101110101000… |
… | …01101000100001 |
3 | 122102211122121121 |
4 | 32322201220201 |
5 | 1003024120022 |
6 | 40455052241 |
7 | 6125601343 |
oct | 1672415041 |
9 | 572748547 |
10 | 250223137 |
11 | 11927638a |
12 | 6b971081 |
13 | 3cac0138 |
14 | 25337293 |
15 | 16e7a2c7 |
hex | eea1a21 |
250223137 has 2 divisors, whose sum is σ = 250223138. Its totient is φ = 250223136.
The previous prime is 250223117. The next prime is 250223203. The reversal of 250223137 is 731322052.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 209786256 + 40436881 = 14484^2 + 6359^2 .
It is a cyclic number.
It is not a de Polignac number, because 250223137 - 219 = 249698849 is a prime.
It is a super-2 number, since 2×2502231372 = 125223236580241538, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (250223117) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125111568 + 125111569.
It is an arithmetic number, because the mean of its divisors is an integer number (125111569).
Almost surely, 2250223137 is an apocalyptic number.
It is an amenable number.
250223137 is a deficient number, since it is larger than the sum of its proper divisors (1).
250223137 is an equidigital number, since it uses as much as digits as its factorization.
250223137 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 250223137 is about 15818.4429385449. The cubic root of 250223137 is about 630.1478925492.
Adding to 250223137 its reverse (731322052), we get a palindrome (981545189).
The spelling of 250223137 in words is "two hundred fifty million, two hundred twenty-three thousand, one hundred thirty-seven".
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