Base | Representation |
---|---|
bin | 11000001101111111… |
… | …00000001011110001 |
3 | 1020120010221210212102 |
4 | 30012333200023301 |
5 | 203112031241311 |
6 | 5550110310145 |
7 | 640130656565 |
oct | 140677401361 |
9 | 36503853772 |
10 | 13002212081 |
11 | 5572456421 |
12 | 262a4b8355 |
13 | 12c2997821 |
14 | 8b4b836a5 |
15 | 51173c43b |
hex | 306fe02f1 |
13002212081 has 2 divisors, whose sum is σ = 13002212082. Its totient is φ = 13002212080.
The previous prime is 13002212071. The next prime is 13002212101. The reversal of 13002212081 is 18021220031.
13002212081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an a-pointer prime, because the next prime (13002212101) can be obtained adding 13002212081 to its sum of digits (20).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8788125025 + 4214087056 = 93745^2 + 64916^2 .
It is an emirp because it is prime and its reverse (18021220031) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13002212081 is a prime.
It is a super-2 number, since 2×130022120812 (a number of 21 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (13002212021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6501106040 + 6501106041.
It is an arithmetic number, because the mean of its divisors is an integer number (6501106041).
Almost surely, 213002212081 is an apocalyptic number.
It is an amenable number.
13002212081 is a deficient number, since it is larger than the sum of its proper divisors (1).
13002212081 is an equidigital number, since it uses as much as digits as its factorization.
13002212081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 192, while the sum is 20.
The spelling of 13002212081 in words is "thirteen billion, two million, two hundred twelve thousand, eighty-one".
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