Base | Representation |
---|---|
bin | 111001010011… |
… | …0001100010000 |
3 | 2002112020022000 |
4 | 1302212030100 |
5 | 30142301343 |
6 | 2551514000 |
7 | 513225435 |
oct | 162461420 |
9 | 62466260 |
10 | 30040848 |
11 | 15a59152 |
12 | a088900 |
13 | 62ba766 |
14 | 3dbdb8c |
15 | 2985ed3 |
hex | 1ca6310 |
30040848 has 40 divisors (see below), whose sum is σ = 86229600. Its totient is φ = 10013472.
The previous prime is 30040847. The next prime is 30040859. The reversal of 30040848 is 84804003.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (30040847) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34338 + ... + 35201.
It is an arithmetic number, because the mean of its divisors is an integer number (2155740).
Almost surely, 230040848 is an apocalyptic number.
It is an amenable number.
30040848 is an abundant number, since it is smaller than the sum of its proper divisors (56188752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30040848 is a wasteful number, since it uses less digits than its factorization.
30040848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69556 (or 69544 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 27.
The square root of 30040848 is about 5480.9532017707. The cubic root of 30040848 is about 310.8642135623.
The spelling of 30040848 in words is "thirty million, forty thousand, eight hundred forty-eight".
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