Base | Representation |
---|---|
bin | 111001110100… |
… | …0111110110101 |
3 | 2010001010120100 |
4 | 1303220332311 |
5 | 30230030141 |
6 | 3001424313 |
7 | 515445144 |
oct | 163507665 |
9 | 63033510 |
10 | 30314421 |
11 | 16125745 |
12 | a19b099 |
13 | 6385137 |
14 | 405175b |
15 | 29dc0b6 |
hex | 1ce8fb5 |
30314421 has 6 divisors (see below), whose sum is σ = 43787510. Its totient is φ = 20209608.
The previous prime is 30314411. The next prime is 30314447. The reversal of 30314421 is 12441303.
It can be written as a sum of positive squares in only one way, i.e., 27973521 + 2340900 = 5289^2 + 1530^2 .
It is not a de Polignac number, because 30314421 - 215 = 30281653 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30314394 and 30314403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30314411) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1684126 + ... + 1684143.
Almost surely, 230314421 is an apocalyptic number.
It is an amenable number.
30314421 is a deficient number, since it is larger than the sum of its proper divisors (13473089).
30314421 is a wasteful number, since it uses less digits than its factorization.
30314421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3368275 (or 3368272 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 30314421 is about 5505.8533398557. The cubic root of 30314421 is about 311.8050125349.
Adding to 30314421 its reverse (12441303), we get a palindrome (42755724).
The spelling of 30314421 in words is "thirty million, three hundred fourteen thousand, four hundred twenty-one".
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