Base | Representation |
---|---|
bin | 111001110011… |
… | …0010000000000 |
3 | 2010000120012221 |
4 | 1303212100000 |
5 | 30224200412 |
6 | 3001300424 |
7 | 515400421 |
oct | 163462000 |
9 | 63016187 |
10 | 30303232 |
11 | 161182a3 |
12 | a194714 |
13 | 638000b |
14 | 404b648 |
15 | 29d8b07 |
hex | 1ce6400 |
30303232 has 44 divisors (see below), whose sum is σ = 61385436. Its totient is φ = 14950400.
The previous prime is 30303211. The next prime is 30303239. The reversal of 30303232 is 23230303.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 28901376 + 1401856 = 5376^2 + 1184^2 .
It is a Harshad number since it is a multiple of its sum of digits (16).
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (30303239) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103278 + ... + 103570.
Almost surely, 230303232 is an apocalyptic number.
30303232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30303232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30692718).
30303232 is an abundant number, since it is smaller than the sum of its proper divisors (31082204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30303232 is a wasteful number, since it uses less digits than its factorization.
30303232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 414 (or 396 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 16.
The square root of 30303232 is about 5504.8371456384. The cubic root of 30303232 is about 311.7666455851.
Adding to 30303232 its reverse (23230303), we get a palindrome (53533535).
The spelling of 30303232 in words is "thirty million, three hundred three thousand, two hundred thirty-two".
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