Base | Representation |
---|---|
bin | 111001001111… |
… | …1111000110000 |
3 | 2002110220212120 |
4 | 1302133320300 |
5 | 30140440044 |
6 | 2551154240 |
7 | 513060234 |
oct | 162377060 |
9 | 62426776 |
10 | 30015024 |
11 | 15a40806 |
12 | a075980 |
13 | 62aba90 |
14 | 3db45c4 |
15 | 297d519 |
hex | 1c9fe30 |
30015024 has 80 divisors (see below), whose sum is σ = 84494592. Its totient is φ = 9126144.
The previous prime is 30015019. The next prime is 30015031. The reversal of 30015024 is 42051003.
It is a junction number, because it is equal to n+sod(n) for n = 30014994 and 30015012.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64039 + ... + 64505.
Almost surely, 230015024 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 30015024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42247296).
30015024 is an abundant number, since it is smaller than the sum of its proper divisors (54479568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30015024 is a wasteful number, since it uses less digits than its factorization.
30015024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 594 (or 588 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 15.
The square root of 30015024 is about 5478.5969006672. The cubic root of 30015024 is about 310.7751120069.
Adding to 30015024 its reverse (42051003), we get a palindrome (72066027).
The spelling of 30015024 in words is "thirty million, fifteen thousand, twenty-four".
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