Base | Representation |
---|---|
bin | 111100011001000… |
… | …110100000011101 |
3 | 2121121112120020022 |
4 | 330121012200131 |
5 | 4033340310323 |
6 | 244312401525 |
7 | 34052112245 |
oct | 7431064035 |
9 | 2547476208 |
10 | 1013213213 |
11 | 47aa290a1 |
12 | 2433a62a5 |
13 | 131bb545c |
14 | 987cab25 |
15 | 5de414c8 |
hex | 3c64681d |
1013213213 has 2 divisors, whose sum is σ = 1013213214. Its totient is φ = 1013213212.
The previous prime is 1013213191. The next prime is 1013213219. The reversal of 1013213213 is 3123123101.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 958645444 + 54567769 = 30962^2 + 7387^2 .
It is a cyclic number.
It is not a de Polignac number, because 1013213213 - 214 = 1013196829 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 1013213191 and 1013213200.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1013213219) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506606606 + 506606607.
It is an arithmetic number, because the mean of its divisors is an integer number (506606607).
Almost surely, 21013213213 is an apocalyptic number.
It is an amenable number.
1013213213 is a deficient number, since it is larger than the sum of its proper divisors (1).
1013213213 is an equidigital number, since it uses as much as digits as its factorization.
1013213213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 108, while the sum is 17.
The square root of 1013213213 is about 31831.0102415867. The cubic root of 1013213213 is about 1004.3851467136.
Adding to 1013213213 its reverse (3123123101), we get a palindrome (4136336314).
The spelling of 1013213213 in words is "one billion, thirteen million, two hundred thirteen thousand, two hundred thirteen".
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