Base | Representation |
---|---|
bin | 111000111110… |
… | …0011111011001 |
3 | 2002012112222211 |
4 | 1301330133121 |
5 | 30121320131 |
6 | 2544115121 |
7 | 511614445 |
oct | 161743731 |
9 | 62175884 |
10 | 29870041 |
11 | 15951893 |
12 | a005aa1 |
13 | 625aaa6 |
14 | 3d77825 |
15 | 29505b1 |
hex | 1c7c7d9 |
29870041 has 2 divisors, whose sum is σ = 29870042. Its totient is φ = 29870040.
The previous prime is 29870039. The next prime is 29870047. The reversal of 29870041 is 14007892.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 21483225 + 8386816 = 4635^2 + 2896^2 .
It is a cyclic number.
It is not a de Polignac number, because 29870041 - 21 = 29870039 is a prime.
Together with 29870039, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 29869985 and 29870012.
It is not a weakly prime, because it can be changed into another prime (29870047) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14935020 + 14935021.
It is an arithmetic number, because the mean of its divisors is an integer number (14935021).
Almost surely, 229870041 is an apocalyptic number.
It is an amenable number.
29870041 is a deficient number, since it is larger than the sum of its proper divisors (1).
29870041 is an equidigital number, since it uses as much as digits as its factorization.
29870041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 29870041 is about 5465.3491196812. The cubic root of 29870041 is about 310.2739202200.
The spelling of 29870041 in words is "twenty-nine million, eight hundred seventy thousand, forty-one".
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