Base | Representation |
---|---|
bin | 10001001011100… |
… | …10010110101111 |
3 | 101001012020000102 |
4 | 20211302112233 |
5 | 243343421221 |
6 | 22145021315 |
7 | 3400012403 |
oct | 1045622657 |
9 | 331166012 |
10 | 144123311 |
11 | 74398a82 |
12 | 4032483b |
13 | 23b22087 |
14 | 151d9103 |
15 | c9bd30b |
hex | 89725af |
144123311 has 2 divisors, whose sum is σ = 144123312. Its totient is φ = 144123310.
The previous prime is 144123289. The next prime is 144123347. The reversal of 144123311 is 113321441.
It is a weak prime.
It is an emirp because it is prime and its reverse (113321441) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 144123311 - 210 = 144122287 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (144123361) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72061655 + 72061656.
It is an arithmetic number, because the mean of its divisors is an integer number (72061656).
Almost surely, 2144123311 is an apocalyptic number.
144123311 is a deficient number, since it is larger than the sum of its proper divisors (1).
144123311 is an equidigital number, since it uses as much as digits as its factorization.
144123311 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 288, while the sum is 20.
The square root of 144123311 is about 12005.1368588617. The cubic root of 144123311 is about 524.2978501569.
Adding to 144123311 its reverse (113321441), we get a palindrome (257444752).
The spelling of 144123311 in words is "one hundred forty-four million, one hundred twenty-three thousand, three hundred eleven".
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