Base | Representation |
---|---|
bin | 1001100110000110011000… |
… | …00101011011001010000011 |
3 | 2202201011120102022010121221 |
4 | 10303003030011123022003 |
5 | 10231201410123110341 |
6 | 112513202345055511 |
7 | 4305306121024123 |
oct | 463031405331203 |
9 | 82634512263557 |
10 | 21100303331971 |
11 | 67a5652168906 |
12 | 2449468a87597 |
13 | ba0999b85586 |
14 | 52d38db24c83 |
15 | 268d022a2ed1 |
hex | 1330cc15b283 |
21100303331971 has 2 divisors, whose sum is σ = 21100303331972. Its totient is φ = 21100303331970.
The previous prime is 21100303331969. The next prime is 21100303332013. The reversal of 21100303331971 is 17913330300112.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 21100303331971 - 21 = 21100303331969 is a prime.
Together with 21100303331969, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (21100303331911) 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, 10550151665985 + 10550151665986.
It is an arithmetic number, because the mean of its divisors is an integer number (10550151665986).
Almost surely, 221100303331971 is an apocalyptic number.
21100303331971 is a deficient number, since it is larger than the sum of its proper divisors (1).
21100303331971 is an equidigital number, since it uses as much as digits as its factorization.
21100303331971 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 10206, while the sum is 34.
The spelling of 21100303331971 in words is "twenty-one trillion, one hundred billion, three hundred three million, three hundred thirty-one thousand, nine hundred seventy-one".
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