Base | Representation |
---|---|
bin | 11001010001011… |
… | …01110111010011 |
3 | 112202220201121200 |
4 | 30220231313103 |
5 | 413233001321 |
6 | 33011522243 |
7 | 5152654263 |
oct | 1450556723 |
9 | 482821550 |
10 | 212000211 |
11 | a9739995 |
12 | 5abb9383 |
13 | 34bc9417 |
14 | 202277a3 |
15 | 13929d26 |
hex | ca2ddd3 |
212000211 has 12 divisors (see below), whose sum is σ = 308635392. Its totient is φ = 140219856.
The previous prime is 212000209. The next prime is 212000219. The reversal of 212000211 is 112000212.
It is not a de Polignac number, because 212000211 - 21 = 212000209 is a prime.
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 = 212000193 and 212000202.
It is not an unprimeable number, because it can be changed into a prime (212000219) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91596 + ... + 93881.
It is an arithmetic number, because the mean of its divisors is an integer number (25719616).
Almost surely, 2212000211 is an apocalyptic number.
212000211 is a deficient number, since it is larger than the sum of its proper divisors (96635181).
212000211 is a wasteful number, since it uses less digits than its factorization.
212000211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 185610 (or 185607 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 212000211 is about 14560.2270243290. The cubic root of 212000211 is about 596.2733935945.
Adding to 212000211 its reverse (112000212), we get a palindrome (324000423).
Subtracting from 212000211 its reverse (112000212), we obtain a palindrome (99999999).
The spelling of 212000211 in words is "two hundred twelve million, two hundred eleven", and thus it is an aban number.
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