Base | Representation |
---|---|
bin | 1100011001100100001… |
… | …1111000011010101101 |
3 | 202100211211012201221102 |
4 | 3012121003320122231 |
5 | 11442231430012234 |
6 | 241505522212445 |
7 | 21250603264343 |
oct | 3063103703255 |
9 | 670754181842 |
10 | 213021329069 |
11 | 82383a9448a |
12 | 353504b4125 |
13 | 1711ac4b213 |
14 | a44b5dd993 |
15 | 581b6dac7e |
hex | 31990f86ad |
213021329069 has 2 divisors, whose sum is σ = 213021329070. Its totient is φ = 213021329068.
The previous prime is 213021329057. The next prime is 213021329077. The reversal of 213021329069 is 960923120312.
It is a happy number.
213021329069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 117655860100 + 95365468969 = 343010^2 + 308813^2 .
It is a cyclic number.
It is not a de Polignac number, because 213021329069 - 220 = 213020280493 is a prime.
It is a super-2 number, since 2×2130213290692 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (213021329099) 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, 106510664534 + 106510664535.
It is an arithmetic number, because the mean of its divisors is an integer number (106510664535).
Almost surely, 2213021329069 is an apocalyptic number.
It is an amenable number.
213021329069 is a deficient number, since it is larger than the sum of its proper divisors (1).
213021329069 is an equidigital number, since it uses as much as digits as its factorization.
213021329069 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 34992, while the sum is 38.
The spelling of 213021329069 in words is "two hundred thirteen billion, twenty-one million, three hundred twenty-nine thousand, sixty-nine".
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