Base | Representation |
---|---|
bin | 11100001000110010… |
… | …011100100111100111 |
3 | 2212222112121110012010 |
4 | 130020302130213213 |
5 | 443333311310343 |
6 | 21513532325303 |
7 | 2116454401203 |
oct | 341062344747 |
9 | 85875543163 |
10 | 30212213223 |
11 | 118a4008a65 |
12 | 5a32013833 |
13 | 2b0633745a |
14 | 16686c9b03 |
15 | bbc596d33 |
hex | 708c9c9e7 |
30212213223 has 4 divisors (see below), whose sum is σ = 40282950968. Its totient is φ = 20141475480.
The previous prime is 30212213197. The next prime is 30212213243. The reversal of 30212213223 is 32231221203.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 30212213223 - 25 = 30212213191 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 30212213223.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30212213243) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5035368868 + ... + 5035368873.
It is an arithmetic number, because the mean of its divisors is an integer number (10070737742).
Almost surely, 230212213223 is an apocalyptic number.
30212213223 is a deficient number, since it is larger than the sum of its proper divisors (10070737745).
30212213223 is a wasteful number, since it uses less digits than its factorization.
30212213223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10070737744.
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 30212213223 its reverse (32231221203), we get a palindrome (62443434426).
The spelling of 30212213223 in words is "thirty billion, two hundred twelve million, two hundred thirteen thousand, two hundred twenty-three".
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