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9903109 is a prime number
BaseRepresentation
bin100101110001…
…110000000101
3200122010111211
4211301300011
510013344414
6552131421
7150114016
oct45616005
920563454
109903109
115654397
123396b71
132089738
14145b00d
15d093c4
hex971c05

9903109 has 2 divisors, whose sum is σ = 9903110. Its totient is φ = 9903108.

The previous prime is 9903083. The next prime is 9903149. The reversal of 9903109 is 9013099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9474084 + 429025 = 3078^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 9903109 - 25 = 9903077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9903149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4951554 + 4951555.

It is an arithmetic number, because the mean of its divisors is an integer number (4951555).

Almost surely, 29903109 is an apocalyptic number.

It is an amenable number.

9903109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9903109 is an equidigital number, since it uses as much as digits as its factorization.

9903109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 9903109 is about 3146.9205582601. The cubic root of 9903109 is about 214.7453917732.

The spelling of 9903109 in words is "nine million, nine hundred three thousand, one hundred nine".