Base | Representation |
---|---|
bin | 111011101010110010… |
… | …0101001110100011011 |
3 | 110020202002202120002222 |
4 | 1313111210221310123 |
5 | 4044411111111232 |
6 | 134510533014255 |
7 | 12154234201112 |
oct | 1672544516433 |
9 | 406662676088 |
10 | 128137207067 |
11 | 4a385127241 |
12 | 20a00a8438b |
13 | c110c9a4ac |
14 | 62b7d28c79 |
15 | 34ee554d12 |
hex | 1dd5929d1b |
128137207067 has 2 divisors, whose sum is σ = 128137207068. Its totient is φ = 128137207066.
The previous prime is 128137207061. The next prime is 128137207069. The reversal of 128137207067 is 760702731821.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 128137207067 - 28 = 128137206811 is a prime.
Together with 128137207069, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (128137207061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64068603533 + 64068603534.
It is an arithmetic number, because the mean of its divisors is an integer number (64068603534).
Almost surely, 2128137207067 is an apocalyptic number.
128137207067 is a deficient number, since it is larger than the sum of its proper divisors (1).
128137207067 is an equidigital number, since it uses as much as digits as its factorization.
128137207067 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 197568, while the sum is 44.
Adding to 128137207067 its reverse (760702731821), we get a palindrome (888839938888).
The spelling of 128137207067 in words is "one hundred twenty-eight billion, one hundred thirty-seven million, two hundred seven thousand, sixty-seven".
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