Base | Representation |
---|---|
bin | 1000010001011110101… |
… | …1100101111001001111 |
3 | 111120212100222021122201 |
4 | 2010113223211321033 |
5 | 4312041043133033 |
6 | 145143313222331 |
7 | 13161100320526 |
oct | 2042753457117 |
9 | 446770867581 |
10 | 142131224143 |
11 | 55306409407 |
12 | 236675619a7 |
13 | 1053129307c |
14 | 6c446c54bd |
15 | 3a6cda547d |
hex | 2117ae5e4f |
142131224143 has 32 divisors (see below), whose sum is σ = 154224000000. Its totient is φ = 130645152000.
The previous prime is 142131224093. The next prime is 142131224149. The reversal of 142131224143 is 341422131241.
It is a happy number.
It is not a de Polignac number, because 142131224143 - 29 = 142131223631 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142131224149) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18949608 + ... + 18957106.
It is an arithmetic number, because the mean of its divisors is an integer number (4819500000).
Almost surely, 2142131224143 is an apocalyptic number.
142131224143 is a deficient number, since it is larger than the sum of its proper divisors (12092775857).
142131224143 is a wasteful number, since it uses less digits than its factorization.
142131224143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7863.
The product of its digits is 4608, while the sum is 28.
Adding to 142131224143 its reverse (341422131241), we get a palindrome (483553355384).
The spelling of 142131224143 in words is "one hundred forty-two billion, one hundred thirty-one million, two hundred twenty-four thousand, one hundred forty-three".
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