Base | Representation |
---|---|
bin | 1100010110100000011… |
… | …1001001000100011000 |
3 | 202021201120220222121102 |
4 | 3011220013021010120 |
5 | 11434041211200440 |
6 | 241252224330532 |
7 | 21221342043011 |
oct | 3055007110430 |
9 | 667646828542 |
10 | 212200100120 |
11 | 81aa2473a78 |
12 | 35161473a48 |
13 | 17019a74728 |
14 | a3b050a008 |
15 | 57be56db15 |
hex | 31681c9118 |
212200100120 has 32 divisors (see below), whose sum is σ = 492851848320. Its totient is φ = 82141973760.
The previous prime is 212200100083. The next prime is 212200100129. The reversal of 212200100120 is 21001002212.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212200100129) 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, 85563317 + ... + 85565796.
It is an arithmetic number, because the mean of its divisors is an integer number (15401620260).
Almost surely, 2212200100120 is an apocalyptic number.
212200100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212200100120 is an abundant number, since it is smaller than the sum of its proper divisors (280651748200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212200100120 is a wasteful number, since it uses less digits than its factorization.
212200100120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 171129155 (or 171129151 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 212200100120 its reverse (21001002212), we get a palindrome (233201102332).
The spelling of 212200100120 in words is "two hundred twelve billion, two hundred million, one hundred thousand, one hundred twenty".
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