Base | Representation |
---|---|
bin | 11101110100011… |
… | …10100101101011 |
3 | 122102200200121111 |
4 | 32322032211223 |
5 | 1003014121011 |
6 | 40453251151 |
7 | 6125125045 |
oct | 1672164553 |
9 | 572620544 |
10 | 250145131 |
11 | 119222815 |
12 | 6b933ab7 |
13 | 3ca93792 |
14 | 25316a95 |
15 | 16e62121 |
hex | ee8e96b |
250145131 has 2 divisors, whose sum is σ = 250145132. Its totient is φ = 250145130.
The previous prime is 250145111. The next prime is 250145143. The reversal of 250145131 is 131541052.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 250145131 - 25 = 250145099 is a prime.
It is a super-2 number, since 2×2501451312 = 125145173126014322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (250145111) 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 as a sum of consecutive naturals, namely, 125072565 + 125072566.
It is an arithmetic number, because the mean of its divisors is an integer number (125072566).
Almost surely, 2250145131 is an apocalyptic number.
250145131 is a deficient number, since it is larger than the sum of its proper divisors (1).
250145131 is an equidigital number, since it uses as much as digits as its factorization.
250145131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 600, while the sum is 22.
The square root of 250145131 is about 15815.9770801554. The cubic root of 250145131 is about 630.0824037672.
Adding to 250145131 its reverse (131541052), we get a palindrome (381686183).
The spelling of 250145131 in words is "two hundred fifty million, one hundred forty-five thousand, one hundred thirty-one".
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