Base | Representation |
---|---|
bin | 10010101010100111… |
… | …00010111010101111 |
3 | 221212101111201122222 |
4 | 21111103202322233 |
5 | 131010401343321 |
6 | 4334215225555 |
7 | 503222062166 |
oct | 112523427257 |
9 | 27771451588 |
10 | 10021121711 |
11 | 4282731077 |
12 | 1b380782bb |
13 | c391a4323 |
14 | 6b0ca03dd |
15 | 3d9b813ab |
hex | 2554e2eaf |
10021121711 has 2 divisors, whose sum is σ = 10021121712. Its totient is φ = 10021121710.
The previous prime is 10021121687. The next prime is 10021121713. The reversal of 10021121711 is 11712112001.
It is a strong prime.
It is an emirp because it is prime and its reverse (11712112001) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10021121711 - 230 = 8947379887 is a prime.
Together with 10021121713, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 10021121711.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10021121713) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010560855 + 5010560856.
It is an arithmetic number, because the mean of its divisors is an integer number (5010560856).
Almost surely, 210021121711 is an apocalyptic number.
10021121711 is a deficient number, since it is larger than the sum of its proper divisors (1).
10021121711 is an equidigital number, since it uses as much as digits as its factorization.
10021121711 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 28, while the sum is 17.
Adding to 10021121711 its reverse (11712112001), we get a palindrome (21733233712).
The spelling of 10021121711 in words is "ten billion, twenty-one million, one hundred twenty-one thousand, seven hundred eleven".
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