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20332297 is a prime number
BaseRepresentation
bin100110110001…
…1111100001001
31102020222200001
41031203330021
520201113142
62003443001
7334551556
oct115437411
942228601
1020332297
1110527a57
126986461
13429b75b
1429b3a2d
151bb95b7
hex1363f09

20332297 has 2 divisors, whose sum is σ = 20332298. Its totient is φ = 20332296.

The previous prime is 20332283. The next prime is 20332313. The reversal of 20332297 is 79223302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20169081 + 163216 = 4491^2 + 404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20332297 is a prime.

It is not a weakly prime, because it can be changed into another prime (20332217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166148 + 10166149.

It is an arithmetic number, because the mean of its divisors is an integer number (10166149).

Almost surely, 220332297 is an apocalyptic number.

It is an amenable number.

20332297 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332297 is an equidigital number, since it uses as much as digits as its factorization.

20332297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20332297 is about 4509.1348394121. The cubic root of 20332297 is about 272.9368332345.

Adding to 20332297 its reverse (79223302), we get a palindrome (99555599).

The spelling of 20332297 in words is "twenty million, three hundred thirty-two thousand, two hundred ninety-seven".