Base | Representation |
---|---|
bin | 111001110100… |
… | …0000000010111 |
3 | 2010000221002021 |
4 | 1303220000113 |
5 | 30224413143 |
6 | 3001354011 |
7 | 515430403 |
oct | 163500027 |
9 | 63027067 |
10 | 30310423 |
11 | 16122740 |
12 | a198907 |
13 | 6383380 |
14 | 4050103 |
15 | 29daced |
hex | 1ce8017 |
30310423 has 16 divisors (see below), whose sum is σ = 36842400. Its totient is φ = 24554880.
The previous prime is 30310421. The next prime is 30310429. The reversal of 30310423 is 32401303.
It is not a de Polignac number, because 30310423 - 21 = 30310421 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30310397 and 30310406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30310421) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493 + ... + 7801.
It is an arithmetic number, because the mean of its divisors is an integer number (2302650).
Almost surely, 230310423 is an apocalyptic number.
30310423 is a deficient number, since it is larger than the sum of its proper divisors (6531977).
30310423 is a wasteful number, since it uses less digits than its factorization.
30310423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7362.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 30310423 is about 5505.4902597316. The cubic root of 30310423 is about 311.7913045239.
Adding to 30310423 its reverse (32401303), we get a palindrome (62711726).
The spelling of 30310423 in words is "thirty million, three hundred ten thousand, four hundred twenty-three".
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