Base | Representation |
---|---|
bin | 11001010010111… |
… | …10111010101010 |
3 | 112210021221020010 |
4 | 30221132322222 |
5 | 413310414010 |
6 | 33020112350 |
7 | 5154452121 |
oct | 1451367252 |
9 | 483257203 |
10 | 212201130 |
11 | a9866939 |
12 | 5b0956b6 |
13 | 34c699cb |
14 | 2027aab8 |
15 | 13969620 |
hex | ca5eeaa |
212201130 has 64 divisors (see below), whose sum is σ = 523911168. Its totient is φ = 54976320.
The previous prime is 212201071. The next prime is 212201137. The reversal of 212201130 is 31102212.
212201130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (212201137) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349287 + ... + 349893.
It is an arithmetic number, because the mean of its divisors is an integer number (8186112).
Almost surely, 2212201130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212201130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261955584).
212201130 is an abundant number, since it is smaller than the sum of its proper divisors (311710038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212201130 is a wasteful number, since it uses less digits than its factorization.
212201130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 931.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 212201130 is about 14567.1249737208. The cubic root of 212201130 is about 596.4617028835.
Adding to 212201130 its reverse (31102212), we get a palindrome (243303342).
The spelling of 212201130 in words is "two hundred twelve million, two hundred one thousand, one hundred thirty".
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