Base | Representation |
---|---|
bin | 10111110110010111… |
… | …11000110011100111 |
3 | 1020001100020022011202 |
4 | 23323023320303213 |
5 | 202210324211241 |
6 | 5514312553115 |
7 | 632204220053 |
oct | 137313706347 |
9 | 36040208152 |
10 | 12804132071 |
11 | 5480664a35 |
12 | 25940b279b |
13 | 1290933413 |
14 | 896740c63 |
15 | 4ee161d9b |
hex | 2fb2f8ce7 |
12804132071 has 2 divisors, whose sum is σ = 12804132072. Its totient is φ = 12804132070.
The previous prime is 12804132067. The next prime is 12804132079. The reversal of 12804132071 is 17023140821.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12804132071 - 22 = 12804132067 is a prime.
It is a super-2 number, since 2×128041320712 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12804132079) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6402066035 + 6402066036.
It is an arithmetic number, because the mean of its divisors is an integer number (6402066036).
Almost surely, 212804132071 is an apocalyptic number.
12804132071 is a deficient number, since it is larger than the sum of its proper divisors (1).
12804132071 is an equidigital number, since it uses as much as digits as its factorization.
12804132071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2688, while the sum is 29.
Adding to 12804132071 its reverse (17023140821), we get a palindrome (29827272892).
The spelling of 12804132071 in words is "twelve billion, eight hundred four million, one hundred thirty-two thousand, seventy-one".
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