Base | Representation |
---|---|
bin | 1001100101110… |
… | …1110010001110 |
3 | 2210200220020010 |
4 | 2121131302032 |
5 | 40244330110 |
6 | 3554134050 |
7 | 665643501 |
oct | 231356216 |
9 | 83626203 |
10 | 40230030 |
11 | 20788465 |
12 | 11581326 |
13 | 8447469 |
14 | 54b3138 |
15 | 37ea020 |
hex | 265dc8e |
40230030 has 64 divisors (see below), whose sum is σ = 102493440. Its totient is φ = 10077696.
The previous prime is 40229963. The next prime is 40230031. The reversal of 40230030 is 3003204.
It is a junction number, because it is equal to n+sod(n) for n = 40229988 and 40230015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (40230031) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92694 + ... + 93126.
It is an arithmetic number, because the mean of its divisors is an integer number (1601460).
Almost surely, 240230030 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 40230030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51246720).
40230030 is an abundant number, since it is smaller than the sum of its proper divisors (62263410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40230030 is a wasteful number, since it uses less digits than its factorization.
40230030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 625.
The product of its (nonzero) digits is 72, while the sum is 12.
The square root of 40230030 is about 6342.7147184782. The cubic root of 40230030 is about 342.6495129282.
Adding to 40230030 its reverse (3003204), we get a palindrome (43233234).
The spelling of 40230030 in words is "forty million, two hundred thirty thousand, thirty".
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