Base | Representation |
---|---|
bin | 11001010111011… |
… | …10111110101110 |
3 | 112211101220200002 |
4 | 30223232332232 |
5 | 413433304324 |
6 | 33040504302 |
7 | 5162460356 |
oct | 1453567656 |
9 | 484356602 |
10 | 212791214 |
11 | aa12a209 |
12 | 5b31b092 |
13 | 3511547c |
14 | 20391b66 |
15 | 13a343ae |
hex | caeefae |
212791214 has 8 divisors (see below), whose sum is σ = 319448568. Its totient is φ = 106308360.
The previous prime is 212791213. The next prime is 212791259. The reversal of 212791214 is 412197212.
212791214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212791213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40532 + ... + 45479.
It is an arithmetic number, because the mean of its divisors is an integer number (39931071).
Almost surely, 2212791214 is an apocalyptic number.
212791214 is a deficient number, since it is larger than the sum of its proper divisors (106657354).
212791214 is a wasteful number, since it uses less digits than its factorization.
212791214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87250.
The product of its digits is 2016, while the sum is 29.
The square root of 212791214 is about 14587.3648751240. The cubic root of 212791214 is about 597.0140668404.
The spelling of 212791214 in words is "two hundred twelve million, seven hundred ninety-one thousand, two hundred fourteen".
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