Base | Representation |
---|---|
bin | 1111011001000… |
… | …01111111010111 |
3 | 22222221200012122 |
4 | 13230201333113 |
5 | 231023122241 |
6 | 20451210155 |
7 | 3125310602 |
oct | 754417727 |
9 | 288850178 |
10 | 129114071 |
11 | 66977349 |
12 | 372a695b |
13 | 20998478 |
14 | 1320d339 |
15 | b50604b |
hex | 7b21fd7 |
129114071 has 2 divisors, whose sum is σ = 129114072. Its totient is φ = 129114070.
The previous prime is 129114059. The next prime is 129114077. The reversal of 129114071 is 170411921.
It is a strong prime.
It is an emirp because it is prime and its reverse (170411921) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 129114071 - 214 = 129097687 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 129114071.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (129114077) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64557035 + 64557036.
It is an arithmetic number, because the mean of its divisors is an integer number (64557036).
Almost surely, 2129114071 is an apocalyptic number.
129114071 is a deficient number, since it is larger than the sum of its proper divisors (1).
129114071 is an equidigital number, since it uses as much as digits as its factorization.
129114071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 504, while the sum is 26.
The square root of 129114071 is about 11362.8372777225. The cubic root of 129114071 is about 505.4263249574.
Adding to 129114071 its reverse (170411921), we get a palindrome (299525992).
The spelling of 129114071 in words is "one hundred twenty-nine million, one hundred fourteen thousand, seventy-one".
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