Base | Representation |
---|---|
bin | 11100001010011110… |
… | …000011000101110101 |
3 | 2220001111200111220110 |
4 | 130022132003011311 |
5 | 443413021421323 |
6 | 21520421053233 |
7 | 2120246221263 |
oct | 341236030565 |
9 | 86044614813 |
10 | 30240420213 |
11 | 11908a24323 |
12 | 5a3b557219 |
13 | 2b0c132293 |
14 | 166c34d433 |
15 | bbecb9793 |
hex | 70a783175 |
30240420213 has 4 divisors (see below), whose sum is σ = 40320560288. Its totient is φ = 20160280140.
The previous prime is 30240420179. The next prime is 30240420227. The reversal of 30240420213 is 31202404203.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 30240420213 - 29 = 30240419701 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30240420213.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30240420253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5040070033 + ... + 5040070038.
It is an arithmetic number, because the mean of its divisors is an integer number (10080140072).
Almost surely, 230240420213 is an apocalyptic number.
It is an amenable number.
30240420213 is a deficient number, since it is larger than the sum of its proper divisors (10080140075).
30240420213 is a wasteful number, since it uses less digits than its factorization.
30240420213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10080140074.
The product of its (nonzero) digits is 1152, while the sum is 21.
Adding to 30240420213 its reverse (31202404203), we get a palindrome (61442824416).
The spelling of 30240420213 in words is "thirty billion, two hundred forty million, four hundred twenty thousand, two hundred thirteen".
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