Base | Representation |
---|---|
bin | 10001001100001… |
… | …11111000010011 |
3 | 101001100200221202 |
4 | 20212013320103 |
5 | 243404231400 |
6 | 22150541415 |
7 | 3400530422 |
oct | 1046077023 |
9 | 331320852 |
10 | 144211475 |
11 | 74449241 |
12 | 4036786b |
13 | 23b53245 |
14 | 1521d2b9 |
15 | c9d94d5 |
hex | 8987e13 |
144211475 has 12 divisors (see below), whose sum is σ = 179013096. Its totient is φ = 115246080.
The previous prime is 144211471. The next prime is 144211477. The reversal of 144211475 is 574112441.
It is a happy number.
It is not a de Polignac number, because 144211475 - 22 = 144211471 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (144211471) 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 in 11 ways as a sum of consecutive naturals, for example, 26324 + ... + 31326.
It is an arithmetic number, because the mean of its divisors is an integer number (14917758).
Almost surely, 2144211475 is an apocalyptic number.
144211475 is a deficient number, since it is larger than the sum of its proper divisors (34801621).
144211475 is a wasteful number, since it uses less digits than its factorization.
144211475 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6166 (or 6161 counting only the distinct ones).
The product of its digits is 4480, while the sum is 29.
The square root of 144211475 is about 12008.8082256317. The cubic root of 144211475 is about 524.4047372687.
The spelling of 144211475 in words is "one hundred forty-four million, two hundred eleven thousand, four hundred seventy-five".
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