Base | Representation |
---|---|
bin | 111001010110… |
… | …0110010000001 |
3 | 2002120121022202 |
4 | 1302230302001 |
5 | 30144132331 |
6 | 2552242545 |
7 | 513400226 |
oct | 162546201 |
9 | 62517282 |
10 | 30067841 |
11 | 15a77461 |
12 | a0a0455 |
13 | 62c9b2b |
14 | 3dc994d |
15 | 298decb |
hex | 1cacc81 |
30067841 has 2 divisors, whose sum is σ = 30067842. Its totient is φ = 30067840.
The previous prime is 30067837. The next prime is 30067847. The reversal of 30067841 is 14876003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 30019441 + 48400 = 5479^2 + 220^2 .
It is a cyclic number.
It is not a de Polignac number, because 30067841 - 22 = 30067837 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (30067847) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15033920 + 15033921.
It is an arithmetic number, because the mean of its divisors is an integer number (15033921).
Almost surely, 230067841 is an apocalyptic number.
It is an amenable number.
30067841 is a deficient number, since it is larger than the sum of its proper divisors (1).
30067841 is an equidigital number, since it uses as much as digits as its factorization.
30067841 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4032, while the sum is 29.
The square root of 30067841 is about 5483.4150855101. The cubic root of 30067841 is about 310.9572939984.
The spelling of 30067841 in words is "thirty million, sixty-seven thousand, eight hundred forty-one".
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