Base | Representation |
---|---|
bin | 1000001111001111… |
… | …1001101101100111 |
3 | 12201010011211100122 |
4 | 2003303321231213 |
5 | 14012110433111 |
6 | 1003234232155 |
7 | 105541524431 |
oct | 20363715547 |
9 | 5633154318 |
10 | 2211421031 |
11 | a35320396 |
12 | 51872565b |
13 | 2931ccc71 |
14 | 16d9b1651 |
15 | ce225cdb |
hex | 83cf9b67 |
2211421031 has 2 divisors, whose sum is σ = 2211421032. Its totient is φ = 2211421030.
The previous prime is 2211420989. The next prime is 2211421033. The reversal of 2211421031 is 1301241122.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2211421031 is a prime.
It is a super-2 number, since 2×22114210312 = 9780765952698205922, which contains 22 as substring.
Together with 2211421033, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2211421033) 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, 1105710515 + 1105710516.
It is an arithmetic number, because the mean of its divisors is an integer number (1105710516).
Almost surely, 22211421031 is an apocalyptic number.
2211421031 is a deficient number, since it is larger than the sum of its proper divisors (1).
2211421031 is an equidigital number, since it uses as much as digits as its factorization.
2211421031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96, while the sum is 17.
The square root of 2211421031 is about 47025.7485958491. The cubic root of 2211421031 is about 1302.8381839279.
Adding to 2211421031 its reverse (1301241122), we get a palindrome (3512662153).
The spelling of 2211421031 in words is "two billion, two hundred eleven million, four hundred twenty-one thousand, thirty-one".
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