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9985229 is a prime number
BaseRepresentation
bin100110000101…
…110011001101
3200210022011022
4212011303031
510024011404
6554003525
7150605312
oct46056315
920708138
109985229
115700061
1234165a5
1320b7c27
14147cd09
15d238be
hex985ccd

9985229 has 2 divisors, whose sum is σ = 9985230. Its totient is φ = 9985228.

The previous prime is 9985207. The next prime is 9985231. The reversal of 9985229 is 9225899.

9985229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7279204 + 2706025 = 2698^2 + 1645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9985229 is a prime.

It is a Sophie Germain prime.

Together with 9985231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9985229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9985249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4992614 + 4992615.

It is an arithmetic number, because the mean of its divisors is an integer number (4992615).

Almost surely, 29985229 is an apocalyptic number.

It is an amenable number.

9985229 is a deficient number, since it is larger than the sum of its proper divisors (1).

9985229 is an equidigital number, since it uses as much as digits as its factorization.

9985229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 9985229 is about 3159.9412969231. The cubic root of 9985229 is about 215.3373395487.

The spelling of 9985229 in words is "nine million, nine hundred eighty-five thousand, two hundred twenty-nine".