Base | Representation |
---|---|
bin | 11100010101001011… |
… | …001101011011100011 |
3 | 2220112000122200212100 |
4 | 130111023031123203 |
5 | 444300011444303 |
6 | 21550314501443 |
7 | 2124556666422 |
oct | 342513153343 |
9 | 86460580770 |
10 | 30420031203 |
11 | 119a0350761 |
12 | 5a8b734883 |
13 | 2b3a3cb083 |
14 | 16881452b9 |
15 | bd09478a3 |
hex | 7152cd6e3 |
30420031203 has 12 divisors (see below), whose sum is σ = 43999513480. Its totient is φ = 20252573856.
The previous prime is 30420031181. The next prime is 30420031223. The reversal of 30420031203 is 30213002403.
It is not a de Polignac number, because 30420031203 - 25 = 30420031171 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30420031223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2280226 + ... + 2293527.
Almost surely, 230420031203 is an apocalyptic number.
30420031203 is a deficient number, since it is larger than the sum of its proper divisors (13579482277).
30420031203 is a wasteful number, since it uses less digits than its factorization.
30420031203 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4574498 (or 4574495 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 30420031203 its reverse (30213002403), we get a palindrome (60633033606).
The spelling of 30420031203 in words is "thirty billion, four hundred twenty million, thirty-one thousand, two hundred three".
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