Base | Representation |
---|---|
bin | 11001011110100111… |
… | …01100001101110001 |
3 | 1022022021200111220011 |
4 | 30233103230031301 |
5 | 211003204433011 |
6 | 10141151414521 |
7 | 662653056352 |
oct | 145723541561 |
9 | 38267614804 |
10 | 13678592881 |
11 | 588a233318 |
12 | 2798b24441 |
13 | 139cb57355 |
14 | 93a92dd29 |
15 | 550ce6621 |
hex | 32f4ec371 |
13678592881 has 2 divisors, whose sum is σ = 13678592882. Its totient is φ = 13678592880.
The previous prime is 13678592849. The next prime is 13678592891. The reversal of 13678592881 is 18829587631.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10745395600 + 2933197281 = 103660^2 + 54159^2 .
It is a cyclic number.
It is not a de Polignac number, because 13678592881 - 25 = 13678592849 is a prime.
It is a super-2 number, since 2×136785928812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13678592891) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6839296440 + 6839296441.
It is an arithmetic number, because the mean of its divisors is an integer number (6839296441).
Almost surely, 213678592881 is an apocalyptic number.
It is an amenable number.
13678592881 is a deficient number, since it is larger than the sum of its proper divisors (1).
13678592881 is an equidigital number, since it uses as much as digits as its factorization.
13678592881 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 5806080, while the sum is 58.
The spelling of 13678592881 in words is "thirteen billion, six hundred seventy-eight million, five hundred ninety-two thousand, eight hundred eighty-one".
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