Base | Representation |
---|---|
bin | 1000010001011110101… |
… | …1100101111001010000 |
3 | 111120212100222021122202 |
4 | 2010113223211321100 |
5 | 4312041043133034 |
6 | 145143313222332 |
7 | 13161100320530 |
oct | 2042753457120 |
9 | 446770867582 |
10 | 142131224144 |
11 | 55306409408 |
12 | 236675619a8 |
13 | 10531293080 |
14 | 6c446c54c0 |
15 | 3a6cda547e |
hex | 2117ae5e50 |
142131224144 has 80 divisors (see below), whose sum is σ = 342422750208. Its totient is φ = 55648014336.
The previous prime is 142131224093. The next prime is 142131224149. The reversal of 142131224144 is 441422131241.
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 15 ways as a sum of consecutive naturals, for example, 361952 + ... + 644415.
Almost surely, 2142131224144 is an apocalyptic number.
142131224144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
142131224144 is an abundant number, since it is smaller than the sum of its proper divisors (200291526064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142131224144 is a wasteful number, since it uses less digits than its factorization.
142131224144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1006492 (or 1006486 counting only the distinct ones).
The product of its digits is 6144, while the sum is 29.
Adding to 142131224144 its reverse (441422131241), we get a palindrome (583553355385).
The spelling of 142131224144 in words is "one hundred forty-two billion, one hundred thirty-one million, two hundred twenty-four thousand, one hundred forty-four".
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