Base | Representation |
---|---|
bin | 100101001000101… |
… | …1010110000001101 |
3 | 10012211201102102121 |
4 | 1022101122300031 |
5 | 10022444030023 |
6 | 323351452541 |
7 | 42610335223 |
oct | 11221326015 |
9 | 3184642377 |
10 | 1246080013 |
11 | 58a41a3a2 |
12 | 2a9387151 |
13 | 16b209569 |
14 | bb6c6b13 |
15 | 745ddd5d |
hex | 4a45ac0d |
1246080013 has 2 divisors, whose sum is σ = 1246080014. Its totient is φ = 1246080012.
The previous prime is 1246079971. The next prime is 1246080049. The reversal of 1246080013 is 3100806421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1107358729 + 138721284 = 33277^2 + 11778^2 .
It is an emirp because it is prime and its reverse (3100806421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1246080013 - 229 = 709209101 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1246080013.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1246080053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623040006 + 623040007.
It is an arithmetic number, because the mean of its divisors is an integer number (623040007).
Almost surely, 21246080013 is an apocalyptic number.
It is an amenable number.
1246080013 is a deficient number, since it is larger than the sum of its proper divisors (1).
1246080013 is an equidigital number, since it uses as much as digits as its factorization.
1246080013 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 1246080013 is about 35299.8585407930. The cubic root of 1246080013 is about 1076.0901184062.
Adding to 1246080013 its reverse (3100806421), we get a palindrome (4346886434).
The spelling of 1246080013 in words is "one billion, two hundred forty-six million, eighty thousand, thirteen".
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