Base | Representation |
---|---|
bin | 10010101010101000… |
… | …00000011100000111 |
3 | 221212101201212112111 |
4 | 21111110000130013 |
5 | 131010414231011 |
6 | 4334222001451 |
7 | 503223104551 |
oct | 112524003407 |
9 | 27771655474 |
10 | 10021242631 |
11 | 4282803a04 |
12 | 1b38116287 |
13 | c3921738a |
14 | 6b0cd24d1 |
15 | 3d9ba7121 |
hex | 255500707 |
10021242631 has 2 divisors, whose sum is σ = 10021242632. Its totient is φ = 10021242630.
The previous prime is 10021242613. The next prime is 10021242719. The reversal of 10021242631 is 13624212001.
Together with previous prime (10021242613) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is an emirp because it is prime and its reverse (13624212001) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10021242631 is a prime.
It is a super-3 number, since 3×100212426313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10021242431) 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, 5010621315 + 5010621316.
It is an arithmetic number, because the mean of its divisors is an integer number (5010621316).
Almost surely, 210021242631 is an apocalyptic number.
10021242631 is a deficient number, since it is larger than the sum of its proper divisors (1).
10021242631 is an equidigital number, since it uses as much as digits as its factorization.
10021242631 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 10021242631 its reverse (13624212001), we get a palindrome (23645454632).
The spelling of 10021242631 in words is "ten billion, twenty-one million, two hundred forty-two thousand, six hundred thirty-one".
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