Base | Representation |
---|---|
bin | 1100111011001… |
… | …1100110010101 |
3 | 10210000022021101 |
4 | 3032303212111 |
5 | 102334304023 |
6 | 5213550101 |
7 | 1225542301 |
oct | 316634625 |
9 | 123008241 |
10 | 54213013 |
11 | 28669048 |
12 | 161a5331 |
13 | b301c0a |
14 | 72b2d01 |
15 | 4b5d1ad |
hex | 33b3995 |
54213013 has 2 divisors, whose sum is σ = 54213014. Its totient is φ = 54213012.
The previous prime is 54212987. The next prime is 54213031. The reversal of 54213013 is 31031245.
Together with next prime (54213031) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 48539089 + 5673924 = 6967^2 + 2382^2 .
It is a cyclic number.
It is not a de Polignac number, because 54213013 - 217 = 54081941 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (54213083) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27106506 + 27106507.
It is an arithmetic number, because the mean of its divisors is an integer number (27106507).
Almost surely, 254213013 is an apocalyptic number.
It is an amenable number.
54213013 is a deficient number, since it is larger than the sum of its proper divisors (1).
54213013 is an equidigital number, since it uses as much as digits as its factorization.
54213013 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 54213013 is about 7362.9486620511. The cubic root of 54213013 is about 378.4726620851.
Adding to 54213013 its reverse (31031245), we get a palindrome (85244258).
The spelling of 54213013 in words is "fifty-four million, two hundred thirteen thousand, thirteen".
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