Base | Representation |
---|---|
bin | 111011000000… |
… | …1011111101011 |
3 | 2011012212111011 |
4 | 1312001133223 |
5 | 30410022430 |
6 | 3023044351 |
7 | 523656334 |
oct | 166013753 |
9 | 64185434 |
10 | 30939115 |
11 | 16512019 |
12 | a4406b7 |
13 | 654358c |
14 | 417528b |
15 | 2ab222a |
hex | 1d817eb |
30939115 has 8 divisors (see below), whose sum is σ = 37224720. Its totient is φ = 24686112.
The previous prime is 30939107. The next prime is 30939119. The reversal of 30939115 is 51193903.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30939115 - 23 = 30939107 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30939119) 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, 6009 + ... + 9898.
It is an arithmetic number, because the mean of its divisors is an integer number (4653090).
Almost surely, 230939115 is an apocalyptic number.
30939115 is a deficient number, since it is larger than the sum of its proper divisors (6285605).
30939115 is a wasteful number, since it uses less digits than its factorization.
30939115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16301.
The product of its (nonzero) digits is 3645, while the sum is 31.
The square root of 30939115 is about 5562.2940411309. The cubic root of 30939115 is about 313.9322713538.
The spelling of 30939115 in words is "thirty million, nine hundred thirty-nine thousand, one hundred fifteen".
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