Base | Representation |
---|---|
bin | 11001010010001… |
… | …11010001110111 |
3 | 112210010000102020 |
4 | 30221013101313 |
5 | 413244314221 |
6 | 33014044223 |
7 | 5153566626 |
oct | 1451072167 |
9 | 483100366 |
10 | 212104311 |
11 | a9800121 |
12 | 5b049673 |
13 | 34c34913 |
14 | 202536bd |
15 | 1394aac6 |
hex | ca47477 |
212104311 has 8 divisors (see below), whose sum is σ = 282945264. Its totient is φ = 141333120.
The previous prime is 212104309. The next prime is 212104363. The reversal of 212104311 is 113401212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 212104311 - 21 = 212104309 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212154311) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9876 + ... + 22841.
It is an arithmetic number, because the mean of its divisors is an integer number (35368158).
Almost surely, 2212104311 is an apocalyptic number.
212104311 is a deficient number, since it is larger than the sum of its proper divisors (70840953).
212104311 is a wasteful number, since it uses less digits than its factorization.
212104311 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34881.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 212104311 is about 14563.8013924937. The cubic root of 212104311 is about 596.3709751061.
Adding to 212104311 its reverse (113401212), we get a palindrome (325505523).
The spelling of 212104311 in words is "two hundred twelve million, one hundred four thousand, three hundred eleven".
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