Base | Representation |
---|---|
bin | 110111111110100010… |
… | …1100100000110001100 |
3 | 102111021122201110001220 |
4 | 1233331011210012030 |
5 | 3432142303224322 |
6 | 131120202003340 |
7 | 11453630636040 |
oct | 1577505440614 |
9 | 374248643056 |
10 | 120210211212 |
11 | 46a875919a3 |
12 | 1b36a1a6550 |
13 | b4499083c0 |
14 | 5b65226020 |
15 | 31d867a55c |
hex | 1bfd16418c |
120210211212 has 96 divisors (see below), whose sum is σ = 345883313664. Its totient is φ = 31642790400.
The previous prime is 120210211127. The next prime is 120210211217. The reversal of 120210211212 is 212112012021.
It is a junction number, because it is equal to n+sod(n) for n = 120210211191 and 120210211200.
It is not an unprimeable number, because it can be changed into a prime (120210211217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463287 + ... + 674577.
It is an arithmetic number, because the mean of its divisors is an integer number (3602951184).
Almost surely, 2120210211212 is an apocalyptic number.
120210211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 120210211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172941656832).
120210211212 is an abundant number, since it is smaller than the sum of its proper divisors (225673102452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120210211212 is a wasteful number, since it uses less digits than its factorization.
120210211212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 211839 (or 211837 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 120210211212 its reverse (212112012021), we get a palindrome (332322223233).
The spelling of 120210211212 in words is "one hundred twenty billion, two hundred ten million, two hundred eleven thousand, two hundred twelve".
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