Base | Representation |
---|---|
bin | 110010010001… |
… | …110110000001 |
3 | 220210121221212 |
4 | 302101312001 |
5 | 11333232124 |
6 | 1150255505 |
7 | 220013333 |
oct | 62216601 |
9 | 26717855 |
10 | 13180289 |
11 | 7492601 |
12 | 44b7595 |
13 | 29662b5 |
14 | 1a71453 |
15 | 125540e |
hex | c91d81 |
13180289 has 2 divisors, whose sum is σ = 13180290. Its totient is φ = 13180288.
The previous prime is 13180283. The next prime is 13180309. The reversal of 13180289 is 98208131.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12306064 + 874225 = 3508^2 + 935^2 .
It is a cyclic number.
It is not a de Polignac number, because 13180289 - 24 = 13180273 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13180283) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590144 + 6590145.
It is an arithmetic number, because the mean of its divisors is an integer number (6590145).
Almost surely, 213180289 is an apocalyptic number.
It is an amenable number.
13180289 is a deficient number, since it is larger than the sum of its proper divisors (1).
13180289 is an equidigital number, since it uses as much as digits as its factorization.
13180289 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 32.
The square root of 13180289 is about 3630.4667743969. The cubic root of 13180289 is about 236.2154560693.
The spelling of 13180289 in words is "thirteen million, one hundred eighty thousand, two hundred eighty-nine".
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