Base | Representation |
---|---|
bin | 11001010001011… |
… | …01110100000001 |
3 | 112202220201022220 |
4 | 30220231310001 |
5 | 413233000001 |
6 | 33011521253 |
7 | 5152653543 |
oct | 1450556401 |
9 | 482821286 |
10 | 212000001 |
11 | a9739814 |
12 | 5abb9229 |
13 | 34bc92b5 |
14 | 20227693 |
15 | 13929c36 |
hex | ca2dd01 |
212000001 has 8 divisors (see below), whose sum is σ = 282759360. Its totient is φ = 141286992.
The previous prime is 211999969. The next prime is 212000003. The reversal of 212000001 is 100000212.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 212000001 - 25 = 211999969 is a prime.
It is not an unprimeable number, because it can be changed into a prime (212000003) 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, 1060 + ... + 20618.
It is an arithmetic number, because the mean of its divisors is an integer number (35344920).
Almost surely, 2212000001 is an apocalyptic number.
It is an amenable number.
212000001 is a deficient number, since it is larger than the sum of its proper divisors (70759359).
212000001 is a wasteful number, since it uses less digits than its factorization.
212000001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23175.
The product of its (nonzero) digits is 4, while the sum is 6.
The square root of 212000001 is about 14560.2198129012. The cubic root of 212000001 is about 596.2731967119.
Adding to 212000001 its reverse (100000212), we get a palindrome (312000213).
The spelling of 212000001 in words is "two hundred twelve million, one", and thus it is an aban number.
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