Base | Representation |
---|---|
bin | 1001010101010001… |
… | …0111101110011001 |
3 | 20110120212120020002 |
4 | 2111110113232121 |
5 | 20112304121431 |
6 | 1052325542345 |
7 | 116036245304 |
oct | 22524275631 |
9 | 6416776202 |
10 | 2505145241 |
11 | 10760a8775 |
12 | 59ab749b5 |
13 | 30c011381 |
14 | 19a9cdb3b |
15 | e9de53cb |
hex | 95517b99 |
2505145241 has 2 divisors, whose sum is σ = 2505145242. Its totient is φ = 2505145240.
The previous prime is 2505145187. The next prime is 2505145243. The reversal of 2505145241 is 1425415052.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1646655241 + 858490000 = 40579^2 + 29300^2 .
It is a cyclic number.
It is not a de Polignac number, because 2505145241 - 210 = 2505144217 is a prime.
Together with 2505145243, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2505145243) 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, 1252572620 + 1252572621.
It is an arithmetic number, because the mean of its divisors is an integer number (1252572621).
Almost surely, 22505145241 is an apocalyptic number.
It is an amenable number.
2505145241 is a deficient number, since it is larger than the sum of its proper divisors (1).
2505145241 is an equidigital number, since it uses as much as digits as its factorization.
2505145241 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8000, while the sum is 29.
The square root of 2505145241 is about 50051.4259637026. The cubic root of 2505145241 is about 1358.1392591241.
The spelling of 2505145241 in words is "two billion, five hundred five million, one hundred forty-five thousand, two hundred forty-one".
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