Base | Representation |
---|---|
bin | 111010111000… |
… | …0001000111000 |
3 | 2011002020222011 |
4 | 1311300020320 |
5 | 30400234044 |
6 | 3021335304 |
7 | 523242145 |
oct | 165601070 |
9 | 64066864 |
10 | 30868024 |
11 | 16473670 |
12 | a407534 |
13 | 651a105 |
14 | 41573cc |
15 | 2a9b134 |
hex | 1d70238 |
30868024 has 64 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 13200000.
The previous prime is 30868021. The next prime is 30868043. The reversal of 30868024 is 42086803.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30868021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204349 + ... + 204499.
It is an arithmetic number, because the mean of its divisors is an integer number (1046520).
Almost surely, 230868024 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30868024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33488640).
30868024 is an abundant number, since it is smaller than the sum of its proper divisors (36109256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30868024 is a wasteful number, since it uses less digits than its factorization.
30868024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 292 (or 288 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 31.
The square root of 30868024 is about 5555.8999271045. The cubic root of 30868024 is about 313.6916388012.
The spelling of 30868024 in words is "thirty million, eight hundred sixty-eight thousand, twenty-four".
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