Base | Representation |
---|---|
bin | 111111110111011… |
… | …1100010100011010 |
3 | 12112100110021222100 |
4 | 1333232330110122 |
5 | 13342102341442 |
6 | 552352104230 |
7 | 104051205516 |
oct | 17756742432 |
9 | 5470407870 |
10 | 2143012122 |
11 | 9aa7467a9 |
12 | 4b9835076 |
13 | 281c9a714 |
14 | 164885146 |
15 | c821184c |
hex | 7fbbc51a |
2143012122 has 24 divisors (see below), whose sum is σ = 4647651840. Its totient is φ = 713651400.
The previous prime is 2143012121. The next prime is 2143012127. The reversal of 2143012122 is 2212103412.
It is a happy number.
2143012122 is a `hidden beast` number, since 21 + 430 + 1 + 212 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 2143012095 and 2143012104.
It is not an unprimeable number, because it can be changed into a prime (2143012121) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37722 + ... + 75557.
It is an arithmetic number, because the mean of its divisors is an integer number (193652160).
Almost surely, 22143012122 is an apocalyptic number.
2143012122 is an abundant number, since it is smaller than the sum of its proper divisors (2504639718).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2143012122 is a wasteful number, since it uses less digits than its factorization.
2143012122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 114338 (or 114335 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 2143012122 is about 46292.6789244261. The cubic root of 2143012122 is about 1289.2630692729.
Adding to 2143012122 its reverse (2212103412), we get a palindrome (4355115534).
The spelling of 2143012122 in words is "two billion, one hundred forty-three million, twelve thousand, one hundred twenty-two".
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