Base | Representation |
---|---|
bin | 11100001000110010… |
… | …011100100101110111 |
3 | 2212222112121110000222 |
4 | 130020302130211313 |
5 | 443333311304421 |
6 | 21513532324555 |
7 | 2116454400653 |
oct | 341062344567 |
9 | 85875543028 |
10 | 30212213111 |
11 | 118a4008973 |
12 | 5a3201375b |
13 | 2b063373a2 |
14 | 16686c9a63 |
15 | bbc596cab |
hex | 708c9c977 |
30212213111 has 16 divisors (see below), whose sum is σ = 30713050368. Its totient is φ = 29716190400.
The previous prime is 30212213047. The next prime is 30212213117. The reversal of 30212213111 is 11131221203.
It is a cyclic number.
It is not a de Polignac number, because 30212213111 - 26 = 30212213047 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 30212213111.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30212213117) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19579406 + ... + 19580948.
It is an arithmetic number, because the mean of its divisors is an integer number (1919565648).
Almost surely, 230212213111 is an apocalyptic number.
30212213111 is a deficient number, since it is larger than the sum of its proper divisors (500837257).
30212213111 is a wasteful number, since it uses less digits than its factorization.
30212213111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2902.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 30212213111 its reverse (11131221203), we get a palindrome (41343434314).
The spelling of 30212213111 in words is "thirty billion, two hundred twelve million, two hundred thirteen thousand, one hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •