Base | Representation |
---|---|
bin | 11100001000110010… |
… | …001011101111101111 |
3 | 2212222112110221101102 |
4 | 130020302023233233 |
5 | 443333302102421 |
6 | 21513531033315 |
7 | 2116453662542 |
oct | 341062135757 |
9 | 85875427342 |
10 | 30212144111 |
11 | 118a3a71046 |
12 | 5a31b9b83b |
13 | 2b06311b66 |
14 | 16686ac859 |
15 | bbc58160b |
hex | 708c8bbef |
30212144111 has 4 divisors (see below), whose sum is σ = 30707425224. Its totient is φ = 29716863000.
The previous prime is 30212144071. The next prime is 30212144113. The reversal of 30212144111 is 11144121203.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30212144111 - 26 = 30212144047 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30212144113) 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, 247640465 + ... + 247640586.
It is an arithmetic number, because the mean of its divisors is an integer number (7676856306).
Almost surely, 230212144111 is an apocalyptic number.
30212144111 is a deficient number, since it is larger than the sum of its proper divisors (495281113).
30212144111 is an equidigital number, since it uses as much as digits as its factorization.
30212144111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 495281112.
The product of its (nonzero) digits is 192, while the sum is 20.
Adding to 30212144111 its reverse (11144121203), we get a palindrome (41356265314).
The spelling of 30212144111 in words is "thirty billion, two hundred twelve million, one hundred forty-four thousand, one hundred eleven".
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