| Base | Representation |
|---|---|
| bin | 11001010010010… |
| … | …00101100011110 |
| 3 | 112210010022101000 |
| 4 | 30221020230132 |
| 5 | 413300010420 |
| 6 | 33014131130 |
| 7 | 5153622552 |
| oct | 1451105436 |
| 9 | 483108330 |
| 10 | 212110110 |
| 11 | a9804513 |
| 12 | 5b050aa6 |
| 13 | 34c37454 |
| 14 | 20255862 |
| 15 | 1394c690 |
| hex | ca48b1e |
212110110 has 128 divisors (see below), whose sum is σ = 601344000. Its totient is φ = 53053056.
The previous prime is 212110109. The next prime is 212110111. The reversal of 212110110 is 11011212.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (212110109) and next prime (212110111).
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 212110092 and 212110101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212110111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 887371 + ... + 887609.
It is an arithmetic number, because the mean of its divisors is an integer number (4698000).
Almost surely, 2212110110 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212110110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300672000).
212110110 is an abundant number, since it is smaller than the sum of its proper divisors (389233890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212110110 is a wasteful number, since it uses less digits than its factorization.
212110110 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 447 (or 441 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
The square root of 212110110 is about 14564.0004806372. Note that the first 3 decimals coincide. The cubic root of 212110110 is about 596.3764100479.
Adding to 212110110 its reverse (11011212), we get a palindrome (223121322).
The spelling of 212110110 in words is "two hundred twelve million, one hundred ten thousand, one hundred ten".
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