Base | Representation |
---|---|
bin | 111001110111… |
… | …0011001000100 |
3 | 2010002020222001 |
4 | 1303232121010 |
5 | 30231232310 |
6 | 3002115044 |
7 | 515566561 |
oct | 163563104 |
9 | 63066861 |
10 | 30336580 |
11 | 1614035a |
12 | a1aba84 |
13 | 6392251 |
14 | 4059868 |
15 | 29e393a |
hex | 1cee644 |
30336580 has 12 divisors (see below), whose sum is σ = 63706860. Its totient is φ = 12134624.
The previous prime is 30336557. The next prime is 30336589. The reversal of 30336580 is 8563303.
It can be written as a sum of positive squares in 2 ways, for example, as 17505856 + 12830724 = 4184^2 + 3582^2 .
It is not an unprimeable number, because it can be changed into a prime (30336589) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758395 + ... + 758434.
It is an arithmetic number, because the mean of its divisors is an integer number (5308905).
Almost surely, 230336580 is an apocalyptic number.
It is an amenable number.
30336580 is an abundant number, since it is smaller than the sum of its proper divisors (33370280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30336580 is a wasteful number, since it uses less digits than its factorization.
30336580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1516838 (or 1516836 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 28.
The square root of 30336580 is about 5507.8652852081. The cubic root of 30336580 is about 311.8809676329.
Adding to 30336580 its reverse (8563303), we get a palindrome (38899883).
It can be divided in two parts, 30 and 336580, that added together give a triangular number (336610 = T820).
The spelling of 30336580 in words is "thirty million, three hundred thirty-six thousand, five hundred eighty".
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