Base | Representation |
---|---|
bin | 111010111010… |
… | …0000100010000 |
3 | 2011010002001000 |
4 | 1311310010100 |
5 | 30401242422 |
6 | 3021542000 |
7 | 523340100 |
oct | 165640420 |
9 | 64102030 |
10 | 30884112 |
11 | 16484766 |
12 | a414900 |
13 | 652452c |
14 | 415d200 |
15 | 2aa0cac |
hex | 1d74110 |
30884112 has 120 divisors (see below), whose sum is σ = 103192800. Its totient is φ = 8817984.
The previous prime is 30884059. The next prime is 30884129. The reversal of 30884112 is 21148803.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20439 + ... + 21897.
It is an arithmetic number, because the mean of its divisors is an integer number (859940).
Almost surely, 230884112 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 30884112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51596400).
30884112 is an abundant number, since it is smaller than the sum of its proper divisors (72308688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30884112 is a wasteful number, since it uses less digits than its factorization.
30884112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1490 (or 1471 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 30884112 is about 5557.3475687598. The cubic root of 30884112 is about 313.7461266274.
The spelling of 30884112 in words is "thirty million, eight hundred eighty-four thousand, one hundred twelve".
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