Base | Representation |
---|---|
bin | 1000010100000010101… |
… | …0101111110001000011 |
3 | 111122122021220020002111 |
4 | 2011000222233301003 |
5 | 4314443112241131 |
6 | 145335440000151 |
7 | 13214120231131 |
oct | 2050052576103 |
9 | 448567806074 |
10 | 142818868291 |
11 | 55629589660 |
12 | 23819900057 |
13 | 106108974b8 |
14 | 6cabb64751 |
15 | 3aad436ab1 |
hex | 2140aafc43 |
142818868291 has 8 divisors (see below), whose sum is σ = 156251404224. Its totient is φ = 129461166120.
The previous prime is 142818868289. The next prime is 142818868319. The reversal of 142818868291 is 192868818241.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 142818868291 - 21 = 142818868289 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (142818868201) 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, 18704445 + ... + 18712078.
It is an arithmetic number, because the mean of its divisors is an integer number (19531425528).
Almost surely, 2142818868291 is an apocalyptic number.
142818868291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
142818868291 is a deficient number, since it is larger than the sum of its proper divisors (13432535933).
142818868291 is a wasteful number, since it uses less digits than its factorization.
142818868291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37416881.
The product of its digits is 3538944, while the sum is 58.
The spelling of 142818868291 in words is "one hundred forty-two billion, eight hundred eighteen million, eight hundred sixty-eight thousand, two hundred ninety-one".
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