Base | Representation |
---|---|
bin | 11100010110010111… |
… | …011101110011011110 |
3 | 2220120102021022000010 |
4 | 130112113131303132 |
5 | 444320121134324 |
6 | 21552311144050 |
7 | 2125221624351 |
oct | 342627356336 |
9 | 86512238003 |
10 | 30440021214 |
11 | 11a00664529 |
12 | 5a96375026 |
13 | 2b415a9a95 |
14 | 168aa6a298 |
15 | bd2595829 |
hex | 7165ddcde |
30440021214 has 16 divisors (see below), whose sum is σ = 60882455952. Its totient is φ = 10146271488.
The previous prime is 30440021173. The next prime is 30440021221. The reversal of 30440021214 is 41212004403.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91662 + ... + 263214.
It is an arithmetic number, because the mean of its divisors is an integer number (3805153497).
Almost surely, 230440021214 is an apocalyptic number.
30440021214 is an abundant number, since it is smaller than the sum of its proper divisors (30442434738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30440021214 is a wasteful number, since it uses less digits than its factorization.
30440021214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201131.
The product of its (nonzero) digits is 768, while the sum is 21.
Adding to 30440021214 its reverse (41212004403), we get a palindrome (71652025617).
The spelling of 30440021214 in words is "thirty billion, four hundred forty million, twenty-one thousand, two hundred fourteen".
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