Base | Representation |
---|---|
bin | 111001101010… |
… | …0011110110001 |
3 | 2002212212101021 |
4 | 1303110132301 |
5 | 30214333244 |
6 | 2555535441 |
7 | 514645264 |
oct | 163243661 |
9 | 62785337 |
10 | 30230449 |
11 | 16078647 |
12 | a15a581 |
13 | 6355b52 |
14 | 402ccdb |
15 | 29c2284 |
hex | 1cd47b1 |
30230449 has 2 divisors, whose sum is σ = 30230450. Its totient is φ = 30230448.
The previous prime is 30230429. The next prime is 30230491. The reversal of 30230449 is 94403203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 17698849 + 12531600 = 4207^2 + 3540^2 .
It is a cyclic number.
It is not a de Polignac number, because 30230449 - 219 = 29706161 is a prime.
It is equal to p1871323 and since 30230449 and 1871323 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (30230429) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115224 + 15115225.
It is an arithmetic number, because the mean of its divisors is an integer number (15115225).
Almost surely, 230230449 is an apocalyptic number.
It is an amenable number.
30230449 is a deficient number, since it is larger than the sum of its proper divisors (1).
30230449 is an equidigital number, since it uses as much as digits as its factorization.
30230449 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2592, while the sum is 25.
The square root of 30230449 is about 5498.2223490870. Note that the first 3 decimals coincide. The cubic root of 30230449 is about 311.5168427160.
The spelling of 30230449 in words is "thirty million, two hundred thirty thousand, four hundred forty-nine".
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