Base | Representation |
---|---|
bin | 11011111110101010… |
… | …101111101101101000 |
3 | 2212112201010011120202 |
4 | 123332222233231220 |
5 | 443011330001440 |
6 | 21445025211332 |
7 | 2112323242334 |
oct | 337652575550 |
9 | 85481104522 |
10 | 30042422120 |
11 | 11817189437 |
12 | 59a5190b48 |
13 | 2aaa0c9249 |
14 | 164dd2c7c4 |
15 | bac708615 |
hex | 6feaafb68 |
30042422120 has 32 divisors (see below), whose sum is σ = 68604343200. Its totient is φ = 11837610048.
The previous prime is 30042422101. The next prime is 30042422131. The reversal of 30042422120 is 2122424003.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 30042422092 and 30042422101.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5602250 + ... + 5607609.
It is an arithmetic number, because the mean of its divisors is an integer number (2143885725).
Almost surely, 230042422120 is an apocalyptic number.
It is an amenable number.
30042422120 is an abundant number, since it is smaller than the sum of its proper divisors (38561921080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30042422120 is a wasteful number, since it uses less digits than its factorization.
30042422120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11209937 (or 11209933 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 20.
Adding to 30042422120 its reverse (2122424003), we get a palindrome (32164846123).
The spelling of 30042422120 in words is "thirty billion, forty-two million, four hundred twenty-two thousand, one hundred twenty".
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