Base | Representation |
---|---|
bin | 11100001110001010… |
… | …001000111101001100 |
3 | 2220012211010212000221 |
4 | 130032022020331030 |
5 | 444024342411340 |
6 | 21530511401124 |
7 | 2121630246520 |
oct | 341612107514 |
9 | 86184125027 |
10 | 30302310220 |
11 | 1193a956196 |
12 | 5a582231a4 |
13 | 2b1bbc15a0 |
14 | 167665dd80 |
15 | bc544244a |
hex | 70e288f4c |
30302310220 has 96 divisors (see below), whose sum is σ = 79393039488. Its totient is φ = 9458767872.
The previous prime is 30302310179. The next prime is 30302310223. The reversal of 30302310220 is 2201320303.
It is a junction number, because it is equal to n+sod(n) for n = 30302310194 and 30302310203.
It is not an unprimeable number, because it can be changed into a prime (30302310223) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18822 + ... + 246898.
It is an arithmetic number, because the mean of its divisors is an integer number (827010828).
Almost surely, 230302310220 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 30302310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39696519744).
30302310220 is an abundant number, since it is smaller than the sum of its proper divisors (49090729268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30302310220 is a wasteful number, since it uses less digits than its factorization.
30302310220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228179 (or 228177 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 30302310220 its reverse (2201320303), we get a palindrome (32503630523).
The spelling of 30302310220 in words is "thirty billion, three hundred two million, three hundred ten thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •