Base | Representation |
---|---|
bin | 11000001101101110… |
… | …01011101011111101 |
3 | 1020112222211222221122 |
4 | 30012313023223331 |
5 | 203111001442343 |
6 | 5545551440325 |
7 | 640103303636 |
oct | 140667135375 |
9 | 36488758848 |
10 | 13000030973 |
11 | 55711a6756 |
12 | 26298260a5 |
13 | 12c23b2b27 |
14 | 8b477688d |
15 | 51145b068 |
hex | 306dcbafd |
13000030973 has 2 divisors, whose sum is σ = 13000030974. Its totient is φ = 13000030972.
The previous prime is 13000030937. The next prime is 13000031027. The reversal of 13000030973 is 37903000031.
Together with previous prime (13000030937) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12463043044 + 536987929 = 111638^2 + 23173^2 .
It is a cyclic number.
It is not a de Polignac number, because 13000030973 - 212 = 13000026877 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13000030903) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500015486 + 6500015487.
It is an arithmetic number, because the mean of its divisors is an integer number (6500015487).
Almost surely, 213000030973 is an apocalyptic number.
It is an amenable number.
13000030973 is a deficient number, since it is larger than the sum of its proper divisors (1).
13000030973 is an equidigital number, since it uses as much as digits as its factorization.
13000030973 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1701, while the sum is 26.
The spelling of 13000030973 in words is "thirteen billion, thirty thousand, nine hundred seventy-three".
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