Base | Representation |
---|---|
bin | 1101100010010… |
… | …00001110000101 |
3 | 21220122112101001 |
4 | 12301020032011 |
5 | 213031321041 |
6 | 15133333301 |
7 | 2546043205 |
oct | 661101605 |
9 | 256575331 |
10 | 113542021 |
11 | 5910088a |
12 | 32037231 |
13 | 1a6a5638 |
14 | 11118405 |
15 | 9e7c131 |
hex | 6c48385 |
113542021 has 2 divisors, whose sum is σ = 113542022. Its totient is φ = 113542020.
The previous prime is 113541991. The next prime is 113542049. The reversal of 113542021 is 120245311.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 113529025 + 12996 = 10655^2 + 114^2 .
It is a cyclic number.
It is not a de Polignac number, because 113542021 - 27 = 113541893 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 113542021.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (113542621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56771010 + 56771011.
It is an arithmetic number, because the mean of its divisors is an integer number (56771011).
Almost surely, 2113542021 is an apocalyptic number.
It is an amenable number.
113542021 is a deficient number, since it is larger than the sum of its proper divisors (1).
113542021 is an equidigital number, since it uses as much as digits as its factorization.
113542021 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 113542021 is about 10655.6098370764. The cubic root of 113542021 is about 484.2305736649.
Adding to 113542021 its reverse (120245311), we get a palindrome (233787332).
The spelling of 113542021 in words is "one hundred thirteen million, five hundred forty-two thousand, twenty-one".
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