Base | Representation |
---|---|
bin | 111001010010… |
… | …0001101100101 |
3 | 2002111211011202 |
4 | 1302210031211 |
5 | 30142021431 |
6 | 2551412245 |
7 | 513163004 |
oct | 162441545 |
9 | 62454152 |
10 | 30032741 |
11 | 15a53052 |
12 | a084085 |
13 | 62b6b6b |
14 | 3dbac3b |
15 | 29838cb |
hex | 1ca4365 |
30032741 has 2 divisors, whose sum is σ = 30032742. Its totient is φ = 30032740.
The previous prime is 30032731. The next prime is 30032747. The reversal of 30032741 is 14723003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 27520516 + 2512225 = 5246^2 + 1585^2 .
It is a cyclic number.
It is not a de Polignac number, because 30032741 - 210 = 30031717 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30032747) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15016370 + 15016371.
It is an arithmetic number, because the mean of its divisors is an integer number (15016371).
Almost surely, 230032741 is an apocalyptic number.
It is an amenable number.
30032741 is a deficient number, since it is larger than the sum of its proper divisors (1).
30032741 is an equidigital number, since it uses as much as digits as its factorization.
30032741 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 504, while the sum is 20.
The square root of 30032741 is about 5480.2135907280. The cubic root of 30032741 is about 310.8362471645.
Adding to 30032741 its reverse (14723003), we get a palindrome (44755744).
The spelling of 30032741 in words is "thirty million, thirty-two thousand, seven hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •