Base | Representation |
---|---|
bin | 11011111101010101… |
… | …101010111000111000 |
3 | 2212111011011002222202 |
4 | 123331111222320320 |
5 | 442440122320440 |
6 | 21442511205332 |
7 | 2111632545044 |
oct | 337525527070 |
9 | 85434132882 |
10 | 30020120120 |
11 | 11805636631 |
12 | 5999816848 |
13 | 2aa55bb0b3 |
14 | 164ada5024 |
15 | baa7a0615 |
hex | 6fd56ae38 |
30020120120 has 32 divisors (see below), whose sum is σ = 68982408000. Its totient is φ = 11752556928.
The previous prime is 30020120113. The next prime is 30020120177. The reversal of 30020120120 is 2102102003.
It is a happy number.
It is a super-2 number, since 2×300201201202 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7982195 + ... + 7985954.
It is an arithmetic number, because the mean of its divisors is an integer number (2155700250).
Almost surely, 230020120120 is an apocalyptic number.
It is an amenable number.
30020120120 is an abundant number, since it is smaller than the sum of its proper divisors (38962287880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30020120120 is a wasteful number, since it uses less digits than its factorization.
30020120120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15968207 (or 15968203 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 11.
Adding to 30020120120 its reverse (2102102003), we get a palindrome (32122222123).
The spelling of 30020120120 in words is "thirty billion, twenty million, one hundred twenty thousand, one hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •