Base | Representation |
---|---|
bin | 10001001010110… |
… | …10110100000001 |
3 | 101001000022201221 |
4 | 20211122310001 |
5 | 243332330011 |
6 | 22142555041 |
7 | 3366131305 |
oct | 1045326401 |
9 | 331008657 |
10 | 144026881 |
11 | 74332589 |
12 | 40298a81 |
13 | 23aba20b |
14 | 151b1d05 |
15 | c99e971 |
hex | 895ad01 |
144026881 has 2 divisors, whose sum is σ = 144026882. Its totient is φ = 144026880.
The previous prime is 144026849. The next prime is 144026893. The reversal of 144026881 is 188620441.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 135955600 + 8071281 = 11660^2 + 2841^2 .
It is a cyclic number.
It is not a de Polignac number, because 144026881 - 25 = 144026849 is a prime.
It is a super-3 number, since 3×1440268813 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not a weakly prime, because it can be changed into another prime (144426881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72013440 + 72013441.
It is an arithmetic number, because the mean of its divisors is an integer number (72013441).
Almost surely, 2144026881 is an apocalyptic number.
It is an amenable number.
144026881 is a deficient number, since it is larger than the sum of its proper divisors (1).
144026881 is an equidigital number, since it uses as much as digits as its factorization.
144026881 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12288, while the sum is 34.
The square root of 144026881 is about 12001.1199894010. The cubic root of 144026881 is about 524.1808916965.
The spelling of 144026881 in words is "one hundred forty-four million, twenty-six thousand, eight hundred eighty-one".
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