Base | Representation |
---|---|
bin | 111111110111111… |
… | …1010000101100100 |
3 | 12112100221011000210 |
4 | 1333233322011210 |
5 | 13342133440444 |
6 | 552401335420 |
7 | 104053311240 |
oct | 17757720544 |
9 | 5470834023 |
10 | 2143265124 |
11 | 9aa8a98a0 |
12 | 4b9937570 |
13 | 282058920 |
14 | 16490d420 |
15 | c82617b9 |
hex | 7fbfa164 |
2143265124 has 192 divisors, whose sum is σ = 6778275840. Its totient is φ = 508999680.
The previous prime is 2143265107. The next prime is 2143265129. The reversal of 2143265124 is 4215623412.
It is a junction number, because it is equal to n+sod(n) for n = 2143265091 and 2143265100.
It is not an unprimeable number, because it can be changed into a prime (2143265129) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1356567 + ... + 1358145.
It is an arithmetic number, because the mean of its divisors is an integer number (35303520).
Almost surely, 22143265124 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2143265124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3389137920).
2143265124 is an abundant number, since it is smaller than the sum of its proper divisors (4635010716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2143265124 is a wasteful number, since it uses less digits than its factorization.
2143265124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1730 (or 1728 counting only the distinct ones).
The product of its digits is 11520, while the sum is 30.
The square root of 2143265124 is about 46295.4114788928. The cubic root of 2143265124 is about 1289.3138036725.
Adding to 2143265124 its reverse (4215623412), we get a palindrome (6358888536).
The spelling of 2143265124 in words is "two billion, one hundred forty-three million, two hundred sixty-five thousand, one hundred twenty-four".
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