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20833301 is a prime number
BaseRepresentation
bin100111101111…
…0010000010101
31110012102220202
41033132100111
520313131201
62022310245
7342036326
oct117362025
943172822
1020833301
111083a405
126b88385
1344157c8
142aa444d
151c67c6b
hex13de415

20833301 has 2 divisors, whose sum is σ = 20833302. Its totient is φ = 20833300.

The previous prime is 20833297. The next prime is 20833303. The reversal of 20833301 is 10333802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14432401 + 6400900 = 3799^2 + 2530^2 .

It is a cyclic number.

It is not a de Polignac number, because 20833301 - 22 = 20833297 is a prime.

Together with 20833303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20833303) 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, 10416650 + 10416651.

It is an arithmetic number, because the mean of its divisors is an integer number (10416651).

Almost surely, 220833301 is an apocalyptic number.

It is an amenable number.

20833301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833301 is an equidigital number, since it uses as much as digits as its factorization.

20833301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20833301 is about 4564.3511039358. The cubic root of 20833301 is about 275.1604617247.

The spelling of 20833301 in words is "twenty million, eight hundred thirty-three thousand, three hundred one".