Base | Representation |
---|---|
bin | 111001001111… |
… | …1000000011100 |
3 | 2002110201221002 |
4 | 1302133000130 |
5 | 30140331140 |
6 | 2551125432 |
7 | 513043565 |
oct | 162370034 |
9 | 62421832 |
10 | 30011420 |
11 | 15a3902a |
12 | a073878 |
13 | 62aa24a |
14 | 3db316c |
15 | 297c415 |
hex | 1c9f01c |
30011420 has 24 divisors (see below), whose sum is σ = 64491504. Its totient is φ = 11725056.
The previous prime is 30011417. The next prime is 30011447. The reversal of 30011420 is 2411003.
It is a happy number.
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, 16589 + ... + 18308.
It is an arithmetic number, because the mean of its divisors is an integer number (2687146).
Almost surely, 230011420 is an apocalyptic number.
It is an amenable number.
30011420 is an abundant number, since it is smaller than the sum of its proper divisors (34480084).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30011420 is a wasteful number, since it uses less digits than its factorization.
30011420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34949 (or 34947 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 30011420 is about 5478.2679744605. The cubic root of 30011420 is about 310.7626729216.
Adding to 30011420 its reverse (2411003), we get a palindrome (32422423).
The spelling of 30011420 in words is "thirty million, eleven thousand, four hundred twenty".
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