Base | Representation |
---|---|
bin | 11011111101111101… |
… | …000000001110001000 |
3 | 2212111212112222000100 |
4 | 123331331000032020 |
5 | 443000242243422 |
6 | 21443520205400 |
7 | 2112116311203 |
oct | 337575001610 |
9 | 85455488010 |
10 | 30030431112 |
11 | 11810439410 |
12 | 59a1169860 |
13 | 2aa778b386 |
14 | 164c4ca93a |
15 | bab63a7ac |
hex | 6fdf40388 |
30030431112 has 96 divisors (see below), whose sum is σ = 88816572000. Its totient is φ = 9090869760.
The previous prime is 30030431083. The next prime is 30030431131. The reversal of 30030431112 is 21113403003.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780339 + ... + 817917.
It is an arithmetic number, because the mean of its divisors is an integer number (925172625).
Almost surely, 230030431112 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30030431112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44408286000).
30030431112 is an abundant number, since it is smaller than the sum of its proper divisors (58786140888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30030431112 is a wasteful number, since it uses less digits than its factorization.
30030431112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38611 (or 38604 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30030431112 its reverse (21113403003), we get a palindrome (51143834115).
The spelling of 30030431112 in words is "thirty billion, thirty million, four hundred thirty-one thousand, one hundred twelve".
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