Base | Representation |
---|---|
bin | 1010000101111… |
… | …0011110101110 |
3 | 2221122120212220 |
4 | 2201132132232 |
5 | 41314030110 |
6 | 4111140210 |
7 | 1022541111 |
oct | 241363656 |
9 | 87576786 |
10 | 42330030 |
11 | 219921a6 |
12 | 12214666 |
13 | 8a01272 |
14 | 589c578 |
15 | 3ab2370 |
hex | 285e7ae |
42330030 has 32 divisors (see below), whose sum is σ = 102377088. Its totient is φ = 11200800.
The previous prime is 42329977. The next prime is 42330031. The reversal of 42330030 is 3003324.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 42329991 and 42330009.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42330031) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456 + ... + 9315.
It is an arithmetic number, because the mean of its divisors is an integer number (3199284).
Almost surely, 242330030 is an apocalyptic number.
42330030 is an abundant number, since it is smaller than the sum of its proper divisors (60047058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42330030 is a wasteful number, since it uses less digits than its factorization.
42330030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10912.
The product of its (nonzero) digits is 216, while the sum is 15.
The square root of 42330030 is about 6506.1532413554. The cubic root of 42330030 is about 348.5107607556.
Adding to 42330030 its reverse (3003324), we get a palindrome (45333354).
The spelling of 42330030 in words is "forty-two million, three hundred thirty thousand, thirty".
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