Base | Representation |
---|---|
bin | 111001101101… |
… | …0010000110001 |
3 | 2002221001212022 |
4 | 1303122100301 |
5 | 30221113004 |
6 | 3000241225 |
7 | 515104313 |
oct | 163322061 |
9 | 62831768 |
10 | 30254129 |
11 | 16094414 |
12 | a170215 |
13 | 6363869 |
14 | 40377b3 |
15 | 29c92be |
hex | 1cda431 |
30254129 has 2 divisors, whose sum is σ = 30254130. Its totient is φ = 30254128.
The previous prime is 30254113. The next prime is 30254153. The reversal of 30254129 is 92145203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 30030400 + 223729 = 5480^2 + 473^2 .
It is an emirp because it is prime and its reverse (92145203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30254129 - 24 = 30254113 is a prime.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 30254098 and 30254107.
It is not a weakly prime, because it can be changed into another prime (30254429) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15127064 + 15127065.
It is an arithmetic number, because the mean of its divisors is an integer number (15127065).
Almost surely, 230254129 is an apocalyptic number.
It is an amenable number.
30254129 is a deficient number, since it is larger than the sum of its proper divisors (1).
30254129 is an equidigital number, since it uses as much as digits as its factorization.
30254129 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2160, while the sum is 26.
The square root of 30254129 is about 5500.3753508283. The cubic root of 30254129 is about 311.5981602156.
The spelling of 30254129 in words is "thirty million, two hundred fifty-four thousand, one hundred twenty-nine".
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