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20575301 is a prime number
BaseRepresentation
bin100111001111…
…1010001000101
31102201100000012
41032133101011
520231402201
62013000005
7336613205
oct116372105
942640005
1020575301
111068358a
126a83005
134355246
142a38405
151c165bb
hex139f445

20575301 has 2 divisors, whose sum is σ = 20575302. Its totient is φ = 20575300.

The previous prime is 20575259. The next prime is 20575333. The reversal of 20575301 is 10357502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 8844676 = 3425^2 + 2974^2 .

It is a cyclic number.

It is not a de Polignac number, because 20575301 - 210 = 20574277 is a prime.

It is a super-2 number, since 2×205753012 = 846686022481202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20575381) 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, 10287650 + 10287651.

It is an arithmetic number, because the mean of its divisors is an integer number (10287651).

Almost surely, 220575301 is an apocalyptic number.

It is an amenable number.

20575301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20575301 is an equidigital number, since it uses as much as digits as its factorization.

20575301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 20575301 is about 4536.0005511464. Note that the first 3 decimals coincide. The cubic root of 20575301 is about 274.0198761932.

The spelling of 20575301 in words is "twenty million, five hundred seventy-five thousand, three hundred one".