Base | Representation |
---|---|
bin | 11100001111010001… |
… | …111100001100101010 |
3 | 2220021010120010010010 |
4 | 130033101330030222 |
5 | 444044202213310 |
6 | 21532423032350 |
7 | 2122246241466 |
oct | 341721741452 |
9 | 86233503103 |
10 | 30321132330 |
11 | 1194a541555 |
12 | 5a6259b6b6 |
13 | 2b22a81828 |
14 | 1678d5d4a6 |
15 | bc6e0e320 |
hex | 70f47c32a |
30321132330 has 32 divisors (see below), whose sum is σ = 76600756800. Its totient is φ = 7660075392.
The previous prime is 30321132313. The next prime is 30321132337. The reversal of 30321132330 is 3323112303.
It is a junction number, because it is equal to n+sod(n) for n = 30321132297 and 30321132306.
It is not an unprimeable number, because it can be changed into a prime (30321132337) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26596915 + ... + 26598054.
It is an arithmetic number, because the mean of its divisors is an integer number (2393773650).
Almost surely, 230321132330 is an apocalyptic number.
30321132330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30321132330 is an abundant number, since it is smaller than the sum of its proper divisors (46279624470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30321132330 is a wasteful number, since it uses less digits than its factorization.
30321132330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53194998.
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 30321132330 its reverse (3323112303), we get a palindrome (33644244633).
The spelling of 30321132330 in words is "thirty billion, three hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty".
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