Base | Representation |
---|---|
bin | 111001001110… |
… | …0100001100101 |
3 | 2002110012222112 |
4 | 1302130201211 |
5 | 30140020003 |
6 | 2551010405 |
7 | 513002132 |
oct | 162344145 |
9 | 62405875 |
10 | 30001253 |
11 | 15a31427 |
12 | a069a05 |
13 | 62a5729 |
14 | 3dad589 |
15 | 29793d8 |
hex | 1c9c865 |
30001253 has 2 divisors, whose sum is σ = 30001254. Its totient is φ = 30001252.
The previous prime is 30001249. The next prime is 30001267. The reversal of 30001253 is 35210003.
It is an a-pointer prime, because the next prime (30001267) can be obtained adding 30001253 to its sum of digits (14).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29953729 + 47524 = 5473^2 + 218^2 .
It is a cyclic number.
It is not a de Polignac number, because 30001253 - 22 = 30001249 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30001553) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000626 + 15000627.
It is an arithmetic number, because the mean of its divisors is an integer number (15000627).
Almost surely, 230001253 is an apocalyptic number.
It is an amenable number.
30001253 is a deficient number, since it is larger than the sum of its proper divisors (1).
30001253 is an equidigital number, since it uses as much as digits as its factorization.
30001253 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 90, while the sum is 14.
The square root of 30001253 is about 5477.3399565848. The cubic root of 30001253 is about 310.7275764933.
Adding to 30001253 its reverse (35210003), we get a palindrome (65211256).
The spelling of 30001253 in words is "thirty million, one thousand, two hundred fifty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •