| Base | Representation |
|---|---|
| bin | 10000111101100… |
| … | …00100100111010 |
| 3 | 100220201121212100 |
| 4 | 20132300210322 |
| 5 | 242410443033 |
| 6 | 22041324230 |
| 7 | 3345240315 |
| oct | 1036604472 |
| 9 | 326647770 |
| 10 | 142281018 |
| 11 | 7334a920 |
| 12 | 3b796676 |
| 13 | 23628669 |
| 14 | 14c7997c |
| 15 | c757513 |
| hex | 87b093a |
142281018 has 96 divisors (see below), whose sum is σ = 353808000. Its totient is φ = 40924800.
The previous prime is 142281017. The next prime is 142281019. The reversal of 142281018 is 810182241.
142281018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (142281017) and next prime (142281019).
It is a junction number, because it is equal to n+sod(n) for n = 142280982 and 142281000.
It is not an unprimeable number, because it can be changed into a prime (142281017) 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 47 ways as a sum of consecutive naturals, for example, 407508 + ... + 407856.
It is an arithmetic number, because the mean of its divisors is an integer number (3685500).
Almost surely, 2142281018 is an apocalyptic number.
142281018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 142281018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176904000).
142281018 is an abundant number, since it is smaller than the sum of its proper divisors (211526982).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142281018 is a wasteful number, since it uses less digits than its factorization.
142281018 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 468 (or 465 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 27.
The square root of 142281018 is about 11928.1607132030. The cubic root of 142281018 is about 522.0542727734.
The spelling of 142281018 in words is "one hundred forty-two million, two hundred eighty-one thousand, eighteen".
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