Base | Representation |
---|---|
bin | 110111010110… |
… | …0101001111101 |
3 | 2000121022020111 |
4 | 1232230221331 |
5 | 24412044444 |
6 | 2513550021 |
7 | 501440524 |
oct | 156545175 |
9 | 60538214 |
10 | 29018749 |
11 | 15420241 |
12 | 9875311 |
13 | 6020476 |
14 | 3bd54bb |
15 | 2833234 |
hex | 1baca7d |
29018749 has 2 divisors, whose sum is σ = 29018750. Its totient is φ = 29018748.
The previous prime is 29018747. The next prime is 29018753. The reversal of 29018749 is 94781092.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 28196100 + 822649 = 5310^2 + 907^2 .
It is a cyclic number.
It is not a de Polignac number, because 29018749 - 21 = 29018747 is a prime.
Together with 29018747, it forms a pair of twin primes.
It is a Chen prime.
It is an alternating number because its digits alternate between even and odd.
It is a nialpdrome in base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (29018747) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14509374 + 14509375.
It is an arithmetic number, because the mean of its divisors is an integer number (14509375).
Almost surely, 229018749 is an apocalyptic number.
It is an amenable number.
29018749 is a deficient number, since it is larger than the sum of its proper divisors (1).
29018749 is an equidigital number, since it uses as much as digits as its factorization.
29018749 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36288, while the sum is 40.
The square root of 29018749 is about 5386.9053268087. The cubic root of 29018749 is about 307.2978784983.
The spelling of 29018749 in words is "twenty-nine million, eighteen thousand, seven hundred forty-nine".
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