Base | Representation |
---|---|
bin | 111001101010… |
… | …0100100110000 |
3 | 2002212212220110 |
4 | 1303110210300 |
5 | 30214341312 |
6 | 2555541320 |
7 | 514646352 |
oct | 163244460 |
9 | 62785813 |
10 | 30230832 |
11 | 16078965 |
12 | a15a840 |
13 | 6356088 |
14 | 402d0d2 |
15 | 29c243c |
hex | 1cd4930 |
30230832 has 80 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 9520896.
The previous prime is 30230819. The next prime is 30230839. The reversal of 30230832 is 23803203.
It is a junction number, because it is equal to n+sod(n) for n = 30230799 and 30230808.
It is not an unprimeable number, because it can be changed into a prime (30230839) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153358 + ... + 153554.
It is an arithmetic number, because the mean of its divisors is an integer number (1031184).
Almost surely, 230230832 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 30230832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41247360).
30230832 is an abundant number, since it is smaller than the sum of its proper divisors (52263888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30230832 is a wasteful number, since it uses less digits than its factorization.
30230832 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 370 (or 364 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 21.
The square root of 30230832 is about 5498.2571784157. The cubic root of 30230832 is about 311.5181582820.
The spelling of 30230832 in words is "thirty million, two hundred thirty thousand, eight hundred thirty-two".
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