Base | Representation |
---|---|
bin | 110001110110… |
… | …111101000101 |
3 | 220121000212121 |
4 | 301312331011 |
5 | 11321221044 |
6 | 1144045541 |
7 | 216044251 |
oct | 61667505 |
9 | 26530777 |
10 | 13070149 |
11 | 7417884 |
12 | 44638b1 |
13 | 2928121 |
14 | 1a43261 |
15 | 1232984 |
hex | c76f45 |
13070149 has 2 divisors, whose sum is σ = 13070150. Its totient is φ = 13070148.
The previous prime is 13070143. The next prime is 13070173. The reversal of 13070149 is 94107031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9345249 + 3724900 = 3057^2 + 1930^2 .
It is a cyclic number.
It is not a de Polignac number, because 13070149 - 213 = 13061957 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13070143) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535074 + 6535075.
It is an arithmetic number, because the mean of its divisors is an integer number (6535075).
Almost surely, 213070149 is an apocalyptic number.
It is an amenable number.
13070149 is a deficient number, since it is larger than the sum of its proper divisors (1).
13070149 is an equidigital number, since it uses as much as digits as its factorization.
13070149 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 756, while the sum is 25.
The square root of 13070149 is about 3615.2661036222. The cubic root of 13070149 is about 235.5556430801. Note that the first 3 decimals are identical.
The spelling of 13070149 in words is "thirteen million, seventy thousand, one hundred forty-nine".
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