| Base | Representation |
|---|---|
| bin | 1000001011001111100110 |
| 3 | 11000212221000 |
| 4 | 20023033212 |
| 5 | 1022040311 |
| 6 | 113534130 |
| 7 | 24134262 |
| oct | 10131746 |
| 9 | 4025830 |
| 10 | 2143206 |
| 11 | 123424a |
| 12 | 874346 |
| 13 | 5a0690 |
| 14 | 3db0a2 |
| 15 | 2c5056 |
| hex | 20b3e6 |
2143206 has 64 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 635040.
The previous prime is 2143201. The next prime is 2143217. The reversal of 2143206 is 6023412.
It is a happy number.
2143206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×21432063 = 29533369839935357448, which contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2143201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30151 + ... + 30221.
It is an arithmetic number, because the mean of its divisors is an integer number (83160).
22143206 is an apocalyptic number.
2143206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 2143206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661120).
2143206 is an abundant number, since it is smaller than the sum of its proper divisors (3179034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2143206 is a wasteful number, since it uses less digits than its factorization.
2143206 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 138 (or 132 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2143206 is about 1463.9692619724. The cubic root of 2143206 is about 128.9301947916.
Adding to 2143206 its reverse (6023412), we get a palindrome (8166618).
The spelling of 2143206 in words is "two million, one hundred forty-three thousand, two hundred six".
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