Base | Representation |
---|---|
bin | 111001011101… |
… | …0000110110111 |
3 | 2002200101012022 |
4 | 1302322012313 |
5 | 30202404143 |
6 | 2553343355 |
7 | 514015322 |
oct | 162720667 |
9 | 62611168 |
10 | 30122423 |
11 | 16004471 |
12 | a107b5b |
13 | 6318926 |
14 | 40017b9 |
15 | 29a0268 |
hex | 1cba1b7 |
30122423 has 2 divisors, whose sum is σ = 30122424. Its totient is φ = 30122422.
The previous prime is 30122401. The next prime is 30122447. The reversal of 30122423 is 32422103.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30122423 - 214 = 30106039 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30122023) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061211 + 15061212.
It is an arithmetic number, because the mean of its divisors is an integer number (15061212).
Almost surely, 230122423 is an apocalyptic number.
30122423 is a deficient number, since it is larger than the sum of its proper divisors (1).
30122423 is an equidigital number, since it uses as much as digits as its factorization.
30122423 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 30122423 is about 5488.3898367372. The cubic root of 30122423 is about 311.1453399934.
Adding to 30122423 its reverse (32422103), we get a palindrome (62544526).
The spelling of 30122423 in words is "thirty million, one hundred twenty-two thousand, four hundred twenty-three".
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