Base | Representation |
---|---|
bin | 11011111110101010… |
… | …101111011101111000 |
3 | 2212112201010010012102 |
4 | 123332222233131320 |
5 | 443011324433422 |
6 | 21445025202532 |
7 | 2112323236364 |
oct | 337652573570 |
9 | 85481103172 |
10 | 30042421112 |
11 | 11817188700 |
12 | 59a5190448 |
13 | 2aaa0c8952 |
14 | 164dd2c2a4 |
15 | bac708192 |
hex | 6feaaf778 |
30042421112 has 24 divisors (see below), whose sum is σ = 61915942200. Its totient is φ = 13655645520.
The previous prime is 30042421111. The next prime is 30042421117. The reversal of 30042421112 is 21112424003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30042421111) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15516812 + ... + 15518747.
It is an arithmetic number, because the mean of its divisors is an integer number (2579830925).
Almost surely, 230042421112 is an apocalyptic number.
It is an amenable number.
30042421112 is an abundant number, since it is smaller than the sum of its proper divisors (31873521088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30042421112 is a wasteful number, since it uses less digits than its factorization.
30042421112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31035587 (or 31035572 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 20.
Adding to 30042421112 its reverse (21112424003), we get a palindrome (51154845115).
It can be divided in two parts, 30042 and 421112, that added together give a palindrome (451154).
The spelling of 30042421112 in words is "thirty billion, forty-two million, four hundred twenty-one thousand, one hundred twelve".
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