Base | Representation |
---|---|
bin | 11100010110100100… |
… | …011001101000110100 |
3 | 2220120122122120022112 |
4 | 130112210121220310 |
5 | 444322003141040 |
6 | 21552511550152 |
7 | 2125262506160 |
oct | 342644315064 |
9 | 86518576275 |
10 | 30443412020 |
11 | 11a0257004a |
12 | 5a9752b358 |
13 | 2b421c6288 |
14 | 168b2adca0 |
15 | bd2a15365 |
hex | 716919a34 |
30443412020 has 48 divisors (see below), whose sum is σ = 73230769920. Its totient is φ = 10413944064.
The previous prime is 30443412011. The next prime is 30443412023. The reversal of 30443412020 is 2021434403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30443412023) 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, 186209 + ... + 309128.
It is an arithmetic number, because the mean of its divisors is an integer number (1525641040).
Almost surely, 230443412020 is an apocalyptic number.
It is an amenable number.
30443412020 is an abundant number, since it is smaller than the sum of its proper divisors (42787357900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30443412020 is a wasteful number, since it uses less digits than its factorization.
30443412020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 495792 (or 495790 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 23.
Adding to 30443412020 its reverse (2021434403), we get a palindrome (32464846423).
The spelling of 30443412020 in words is "thirty billion, four hundred forty-three million, four hundred twelve thousand, twenty".
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