Base | Representation |
---|---|
bin | 111001011101… |
… | …0101011001000 |
3 | 2002200111101021 |
4 | 1302322223020 |
5 | 30202442434 |
6 | 2553402224 |
7 | 514025146 |
oct | 162725310 |
9 | 62614337 |
10 | 30124744 |
11 | 16006191 |
12 | a109374 |
13 | 63199c0 |
14 | 4002596 |
15 | 29a0cb4 |
hex | 1cbaac8 |
30124744 has 32 divisors (see below), whose sum is σ = 62133120. Its totient is φ = 13605696.
The previous prime is 30124729. The next prime is 30124753. The reversal of 30124744 is 44742103.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807 + ... + 7969.
It is an arithmetic number, because the mean of its divisors is an integer number (1941660).
Almost surely, 230124744 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 30124744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31066560).
30124744 is an abundant number, since it is smaller than the sum of its proper divisors (32008376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30124744 is a wasteful number, since it uses less digits than its factorization.
30124744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6229 (or 6225 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 25.
The square root of 30124744 is about 5488.6012790145. The cubic root of 30124744 is about 311.1533312694.
Adding to 30124744 its reverse (44742103), we get a palindrome (74866847).
The spelling of 30124744 in words is "thirty million, one hundred twenty-four thousand, seven hundred forty-four".
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