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20759201 is a prime number
BaseRepresentation
bin100111100110…
…0001010100001
31110001200021022
41033030022201
520303243301
62020535225
7341310311
oct117141241
943050238
1020759201
1110799771
126b51515
1343bab68
142a85441
151c50d1b
hex13cc2a1

20759201 has 2 divisors, whose sum is σ = 20759202. Its totient is φ = 20759200.

The previous prime is 20759171. The next prime is 20759203. The reversal of 20759201 is 10295702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15808576 + 4950625 = 3976^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 20759201 - 214 = 20742817 is a prime.

Together with 20759203, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p1315709 and since 20759201 and 1315709 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20759203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10379600 + 10379601.

It is an arithmetic number, because the mean of its divisors is an integer number (10379601).

Almost surely, 220759201 is an apocalyptic number.

It is an amenable number.

20759201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20759201 is an equidigital number, since it uses as much as digits as its factorization.

20759201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 20759201 is about 4556.2266185957. The cubic root of 20759201 is about 274.8338434291.

The spelling of 20759201 in words is "twenty million, seven hundred fifty-nine thousand, two hundred one".