Base | Representation |
---|---|
bin | 11000010001010101… |
… | …01100100100010100 |
3 | 1020122002211110000000 |
4 | 30020222230210110 |
5 | 203141224442322 |
6 | 5552552451300 |
7 | 640621553301 |
oct | 141052544424 |
9 | 36562743000 |
10 | 13030312212 |
11 | 55872a9475 |
12 | 26379a9b30 |
13 | 12c8755b18 |
14 | 8b87ba0a8 |
15 | 513e3d3ac |
hex | 308aac914 |
13030312212 has 96 divisors (see below), whose sum is σ = 35303296000. Its totient is φ = 4203239040.
The previous prime is 13030312187. The next prime is 13030312223. The reversal of 13030312212 is 21221303031.
It is a super-3 number, since 3×130303122123 (a number of 31 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247164 + ... + 295212.
Almost surely, 213030312212 is an apocalyptic number.
13030312212 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 13030312212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17651648000).
13030312212 is an abundant number, since it is smaller than the sum of its proper divisors (22272983788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13030312212 is an equidigital number, since it uses as much as digits as its factorization.
13030312212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48105 (or 48085 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 13030312212 its reverse (21221303031), we get a palindrome (34251615243).
The spelling of 13030312212 in words is "thirteen billion, thirty million, three hundred twelve thousand, two hundred twelve".
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