Base | Representation |
---|---|
bin | 11001010011000… |
… | …10011001110101 |
3 | 112210022122211010 |
4 | 30221202121311 |
5 | 413311343123 |
6 | 33020302433 |
7 | 5154541554 |
oct | 1451423165 |
9 | 483278733 |
10 | 212215413 |
11 | a9876643 |
12 | 5b0a1a19 |
13 | 34c73367 |
14 | 20281d9b |
15 | 1396d993 |
hex | ca62675 |
212215413 has 8 divisors (see below), whose sum is σ = 283113376. Its totient is φ = 141397200.
The previous prime is 212215361. The next prime is 212215433. The reversal of 212215413 is 314512212.
212215413 is digitally balanced in base 2, 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 not a de Polignac number, because 212215413 - 221 = 210118261 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 11.
It is a self number, because there is not a number n which added to its sum of digits gives 212215413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212215433) 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, 13423 + ... + 24588.
It is an arithmetic number, because the mean of its divisors is an integer number (35389172).
Almost surely, 2212215413 is an apocalyptic number.
It is an amenable number.
212215413 is a deficient number, since it is larger than the sum of its proper divisors (70897963).
212215413 is a wasteful number, since it uses less digits than its factorization.
212215413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39875.
The product of its digits is 480, while the sum is 21.
The square root of 212215413 is about 14567.6152132049. The cubic root of 212215413 is about 596.4750849539.
Adding to 212215413 its reverse (314512212), we get a palindrome (526727625).
The spelling of 212215413 in words is "two hundred twelve million, two hundred fifteen thousand, four hundred thirteen".
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