Base | Representation |
---|---|
bin | 111001110100… |
… | …0101001000110 |
3 | 2010001001122211 |
4 | 1303220221012 |
5 | 30230004110 |
6 | 3001414034 |
7 | 515441116 |
oct | 163505106 |
9 | 63031584 |
10 | 30313030 |
11 | 161246a0 |
12 | a19a31a |
13 | 6384607 |
14 | 4051046 |
15 | 29db98a |
hex | 1ce8a46 |
30313030 has 16 divisors (see below), whose sum is σ = 59523984. Its totient is φ = 11022880.
The previous prime is 30313013. The next prime is 30313039. The reversal of 30313030 is 3031303.
It is a self number, because there is not a number n which added to its sum of digits gives 30313030.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30313039) 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, 137677 + ... + 137896.
It is an arithmetic number, because the mean of its divisors is an integer number (3720249).
Almost surely, 230313030 is an apocalyptic number.
30313030 is a deficient number, since it is larger than the sum of its proper divisors (29210954).
30313030 is a wasteful number, since it uses less digits than its factorization.
30313030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 275591.
The product of its (nonzero) digits is 81, while the sum is 13.
The square root of 30313030 is about 5505.7270182965. The cubic root of 30313030 is about 311.8002433261.
Adding to 30313030 its reverse (3031303), we get a palindrome (33344333).
The spelling of 30313030 in words is "thirty million, three hundred thirteen thousand, thirty".
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