Base | Representation |
---|---|
bin | 10001001011100… |
… | …10000011111111 |
3 | 101001012011100222 |
4 | 20211302003333 |
5 | 243343401421 |
6 | 22145011555 |
7 | 3400006040 |
oct | 1045620377 |
9 | 331164328 |
10 | 144122111 |
11 | 74398091 |
12 | 40323bbb |
13 | 23b21673 |
14 | 151d88c7 |
15 | c9bccab |
hex | 89720ff |
144122111 has 8 divisors (see below), whose sum is σ = 168541824. Its totient is φ = 120660120.
The previous prime is 144122063. The next prime is 144122123. The reversal of 144122111 is 111221441.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 144122111 - 26 = 144122047 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 144122111.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144122411) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239105 + ... + 239706.
It is an arithmetic number, because the mean of its divisors is an integer number (21067728).
Almost surely, 2144122111 is an apocalyptic number.
144122111 is a deficient number, since it is larger than the sum of its proper divisors (24419713).
144122111 is an equidigital number, since it uses as much as digits as its factorization.
144122111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 478861.
The product of its digits is 64, while the sum is 17.
The square root of 144122111 is about 12005.0868801521. The cubic root of 144122111 is about 524.2963950160.
Adding to 144122111 its reverse (111221441), we get a palindrome (255343552).
The spelling of 144122111 in words is "one hundred forty-four million, one hundred twenty-two thousand, one hundred eleven".
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