Base | Representation |
---|---|
bin | 111001110111… |
… | …0010010000011 |
3 | 2010002020100102 |
4 | 1303232102003 |
5 | 30231224011 |
6 | 3002113015 |
7 | 515565350 |
oct | 163562203 |
9 | 63066312 |
10 | 30336131 |
11 | 1613aa91 |
12 | a1ab76b |
13 | 6391c97 |
14 | 4059627 |
15 | 29e373b |
hex | 1cee483 |
30336131 has 4 divisors (see below), whose sum is σ = 34669872. Its totient is φ = 26002392.
The previous prime is 30336107. The next prime is 30336133. The reversal of 30336131 is 13163303.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13163303 = 29 ⋅453907.
It is a cyclic number.
It is not a de Polignac number, because 30336131 - 218 = 30073987 is a prime.
It is a super-2 number, since 2×303361312 = 1840561688098322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30336133) 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, 2166860 + ... + 2166873.
It is an arithmetic number, because the mean of its divisors is an integer number (8667468).
Almost surely, 230336131 is an apocalyptic number.
30336131 is a deficient number, since it is larger than the sum of its proper divisors (4333741).
30336131 is an equidigital number, since it uses as much as digits as its factorization.
30336131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4333740.
The product of its (nonzero) digits is 486, while the sum is 20.
The square root of 30336131 is about 5507.8245251642. The cubic root of 30336131 is about 311.8794289488.
Adding to 30336131 its reverse (13163303), we get a palindrome (43499434).
The spelling of 30336131 in words is "thirty million, three hundred thirty-six thousand, one hundred thirty-one".
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