Base | Representation |
---|---|
bin | 1000010101001111110… |
… | …0001100001000010101 |
3 | 111200110211022120211001 |
4 | 2011103330030020111 |
5 | 4321123401124041 |
6 | 145431510143301 |
7 | 13225124456431 |
oct | 2052374141025 |
9 | 450424276731 |
10 | 143142208021 |
11 | 5578505457a |
12 | 238aa051b31 |
13 | 10662877897 |
14 | 6cdca919c1 |
15 | 3acba06131 |
hex | 2153f0c215 |
143142208021 has 8 divisors (see below), whose sum is σ = 146307284640. Its totient is φ = 140001762768.
The previous prime is 143142208019. The next prime is 143142208031. The reversal of 143142208021 is 120802241341.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 143142208021 - 21 = 143142208019 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 (143142208031) 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, 6146091 + ... + 6169336.
It is an arithmetic number, because the mean of its divisors is an integer number (18288410580).
Almost surely, 2143142208021 is an apocalyptic number.
It is an amenable number.
143142208021 is a deficient number, since it is larger than the sum of its proper divisors (3165076619).
143142208021 is a wasteful number, since it uses less digits than its factorization.
143142208021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12315683.
The product of its (nonzero) digits is 3072, while the sum is 28.
Adding to 143142208021 its reverse (120802241341), we get a palindrome (263944449362).
The spelling of 143142208021 in words is "one hundred forty-three billion, one hundred forty-two million, two hundred eight thousand, twenty-one".
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