Base | Representation |
---|---|
bin | 111001111111… |
… | …1111010101101 |
3 | 2010012220102202 |
4 | 1303333322231 |
5 | 30241031430 |
6 | 3003431245 |
7 | 516316061 |
oct | 163777255 |
9 | 63186382 |
10 | 30408365 |
11 | 1618a289 |
12 | a225525 |
13 | 63b8b20 |
14 | 4077aa1 |
15 | 2a09d45 |
hex | 1cffead |
30408365 has 16 divisors (see below), whose sum is σ = 40567296. Its totient is φ = 21729600.
The previous prime is 30408337. The next prime is 30408397. The reversal of 30408365 is 56380403.
It is not a de Polignac number, because 30408365 - 222 = 26214061 is a prime.
It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5531 + ... + 9560.
It is an arithmetic number, because the mean of its divisors is an integer number (2535456).
Almost surely, 230408365 is an apocalyptic number.
It is an amenable number.
30408365 is a deficient number, since it is larger than the sum of its proper divisors (10158931).
30408365 is a wasteful number, since it uses less digits than its factorization.
30408365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15140.
The product of its (nonzero) digits is 8640, while the sum is 29.
The square root of 30408365 is about 5514.3780247640. The cubic root of 30408365 is about 312.1267736241.
Adding to 30408365 its reverse (56380403), we get a palindrome (86788768).
The spelling of 30408365 in words is "thirty million, four hundred eight thousand, three hundred sixty-five".
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