Base | Representation |
---|---|
bin | 111001010110… |
… | …0110011101101 |
3 | 2002120121110202 |
4 | 1302230303231 |
5 | 30144133244 |
6 | 2552243245 |
7 | 513400442 |
oct | 162546355 |
9 | 62517422 |
10 | 30067949 |
11 | 15a7754a |
12 | a0a0525 |
13 | 62c9bb2 |
14 | 3dc99c9 |
15 | 298e04e |
hex | 1cacced |
30067949 has 2 divisors, whose sum is σ = 30067950. Its totient is φ = 30067948.
The previous prime is 30067927. The next prime is 30067979. The reversal of 30067949 is 94976003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 30052324 + 15625 = 5482^2 + 125^2 .
It is a cyclic number.
It is not a de Polignac number, because 30067949 - 212 = 30063853 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30067909) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15033974 + 15033975.
It is an arithmetic number, because the mean of its divisors is an integer number (15033975).
Almost surely, 230067949 is an apocalyptic number.
It is an amenable number.
30067949 is a deficient number, since it is larger than the sum of its proper divisors (1).
30067949 is an equidigital number, since it uses as much as digits as its factorization.
30067949 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 40824, while the sum is 38.
The square root of 30067949 is about 5483.4249333788. The cubic root of 30067949 is about 310.9576663048.
The spelling of 30067949 in words is "thirty million, sixty-seven thousand, nine hundred forty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •