Base | Representation |
---|---|
bin | 11100001001010000… |
… | …111101101111011011 |
3 | 2220000002122220002222 |
4 | 130021100331233123 |
5 | 443342333310321 |
6 | 21514420014255 |
7 | 2116612400606 |
oct | 341120755733 |
9 | 86002586088 |
10 | 30220213211 |
11 | 118a8582521 |
12 | 5a3483138b |
13 | 2b07ba8886 |
14 | 16697ad33d |
15 | bbd1273ab |
hex | 70943dbdb |
30220213211 has 8 divisors (see below), whose sum is σ = 30960919248. Its totient is φ = 29479680000.
The previous prime is 30220213207. The next prime is 30220213213. The reversal of 30220213211 is 11231202203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30220213211 - 22 = 30220213207 is a prime.
It is a super-2 number, since 2×302202132112 (a number of 22 digits) contains 22 as substring.
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 30220213211.
It is not an unprimeable number, because it can be changed into a prime (30220213213) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355256 + ... + 432026.
It is an arithmetic number, because the mean of its divisors is an integer number (3870114906).
Almost surely, 230220213211 is an apocalyptic number.
30220213211 is a deficient number, since it is larger than the sum of its proper divisors (740706037).
30220213211 is an equidigital number, since it uses as much as digits as its factorization.
30220213211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86413.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 30220213211 its reverse (11231202203), we get a palindrome (41451415414).
The spelling of 30220213211 in words is "thirty billion, two hundred twenty million, two hundred thirteen thousand, two hundred eleven".
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