Base | Representation |
---|---|
bin | 111010110111… |
… | …1101010011111 |
3 | 2011002011022010 |
4 | 1311233222133 |
5 | 30400203304 |
6 | 3021322303 |
7 | 523233366 |
oct | 165575237 |
9 | 64064263 |
10 | 30866079 |
11 | 16472162 |
12 | a406393 |
13 | 651926a |
14 | 41567dd |
15 | 2a9a789 |
hex | 1d6fa9f |
30866079 has 16 divisors (see below), whose sum is σ = 42177632. Its totient is φ = 20072448.
The previous prime is 30866057. The next prime is 30866093. The reversal of 30866079 is 97066803.
It is not a de Polignac number, because 30866079 - 25 = 30866047 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30866009) 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, 20517 + ... + 21969.
It is an arithmetic number, because the mean of its divisors is an integer number (2636102).
Almost surely, 230866079 is an apocalyptic number.
30866079 is a deficient number, since it is larger than the sum of its proper divisors (11311553).
30866079 is a wasteful number, since it uses less digits than its factorization.
30866079 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1626.
The product of its (nonzero) digits is 54432, while the sum is 39.
The square root of 30866079 is about 5555.7248851973. The cubic root of 30866079 is about 313.6850500730.
The spelling of 30866079 in words is "thirty million, eight hundred sixty-six thousand, seventy-nine".
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