Base | Representation |
---|---|
bin | 10001110000011011011… |
… | …000111011111110101111 |
3 | 11022122121221110110221112 |
4 | 101300123120323332233 |
5 | 124443012414442111 |
6 | 2332322132422235 |
7 | 154105304566124 |
oct | 21603330737657 |
9 | 4278557413845 |
10 | 1220230234031 |
11 | 430551179376 |
12 | 1785a477797b |
13 | 8b0b48a42a3 |
14 | 430b922274b |
15 | 21b1ac83e8b |
hex | 11c1b63bfaf |
1220230234031 has 2 divisors, whose sum is σ = 1220230234032. Its totient is φ = 1220230234030.
The previous prime is 1220230233997. The next prime is 1220230234049. The reversal of 1220230234031 is 1304320320221.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1220230234031 is a prime.
It is a super-2 number, since 2×12202302340312 (a number of 25 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 1220230233988 and 1220230234006.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1220230234061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610115117015 + 610115117016.
It is an arithmetic number, because the mean of its divisors is an integer number (610115117016).
Almost surely, 21220230234031 is an apocalyptic number.
1220230234031 is a deficient number, since it is larger than the sum of its proper divisors (1).
1220230234031 is an equidigital number, since it uses as much as digits as its factorization.
1220230234031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1728, while the sum is 23.
Adding to 1220230234031 its reverse (1304320320221), we get a palindrome (2524550554252).
The spelling of 1220230234031 in words is "one trillion, two hundred twenty billion, two hundred thirty million, two hundred thirty-four thousand, thirty-one".
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