Base | Representation |
---|---|
bin | 111111001100011… |
… | …0001101010101001 |
3 | 12110202221201001010 |
4 | 1332120301222221 |
5 | 13320312032410 |
6 | 550224014133 |
7 | 103355210322 |
oct | 17630615251 |
9 | 5422851033 |
10 | 2120424105 |
11 | 998a19018 |
12 | 4b2161349 |
13 | 27a3bc327 |
14 | 161885449 |
15 | c624dc20 |
hex | 7e631aa9 |
2120424105 has 8 divisors (see below), whose sum is σ = 3392678592. Its totient is φ = 1130892848.
The previous prime is 2120424091. The next prime is 2120424113. The reversal of 2120424105 is 5014240212.
2120424105 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2120424105 - 28 = 2120423849 is a prime.
It is an unprimeable number.
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, 70680789 + ... + 70680818.
It is an arithmetic number, because the mean of its divisors is an integer number (424084824).
Almost surely, 22120424105 is an apocalyptic number.
It is an amenable number.
2120424105 is a deficient number, since it is larger than the sum of its proper divisors (1272254487).
2120424105 is a wasteful number, since it uses less digits than its factorization.
2120424105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141361615.
The product of its (nonzero) digits is 640, while the sum is 21.
The square root of 2120424105 is about 46048.0629885775. The cubic root of 2120424105 is about 1284.7173153199.
Adding to 2120424105 its reverse (5014240212), we get a palindrome (7134664317).
The spelling of 2120424105 in words is "two billion, one hundred twenty million, four hundred twenty-four thousand, one hundred five".
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