Base | Representation |
---|---|
bin | 1000010110010111001… |
… | …1111001001100101101 |
3 | 111201020201110202221102 |
4 | 2011211303321030231 |
5 | 4322232124220323 |
6 | 145521340212445 |
7 | 13235425036256 |
oct | 2054563711455 |
9 | 451221422842 |
10 | 143442023213 |
11 | 55919312125 |
12 | 2397253a125 |
13 | 106aca0c518 |
14 | 6d2a817b2d |
15 | 3ae7eca328 |
hex | 2165cf932d |
143442023213 has 4 divisors (see below), whose sum is σ = 144162837600. Its totient is φ = 142721208828.
The previous prime is 143442023191. The next prime is 143442023237. The reversal of 143442023213 is 312320244341.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 143442023213 - 216 = 143441957677 is a prime.
It is a super-2 number, since 2×1434420232132 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (143442023273) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360406895 + ... + 360407292.
It is an arithmetic number, because the mean of its divisors is an integer number (36040709400).
Almost surely, 2143442023213 is an apocalyptic number.
It is an amenable number.
143442023213 is a deficient number, since it is larger than the sum of its proper divisors (720814387).
143442023213 is an equidigital number, since it uses as much as digits as its factorization.
143442023213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 720814386.
The product of its (nonzero) digits is 13824, while the sum is 29.
Adding to 143442023213 its reverse (312320244341), we get a palindrome (455762267554).
The spelling of 143442023213 in words is "one hundred forty-three billion, four hundred forty-two million, twenty-three thousand, two hundred thirteen".
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