Search a number
-
+
801740801 is a prime number
BaseRepresentation
bin101111110010011…
…001100000000001
32001212121122121202
4233302121200001
53120221201201
6211320030545
725603453511
oct5762314001
92055548552
10801740801
1138161a804
121a4602455
13ca142354
147869d841
154a5bcc6b
hex2fc99801

801740801 has 2 divisors, whose sum is σ = 801740802. Its totient is φ = 801740800.

The previous prime is 801740783. The next prime is 801740833. The reversal of 801740801 is 108047108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458602225 + 343138576 = 21415^2 + 18524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-801740801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (801740101) 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, 400870400 + 400870401.

It is an arithmetic number, because the mean of its divisors is an integer number (400870401).

Almost surely, 2801740801 is an apocalyptic number.

It is an amenable number.

801740801 is a deficient number, since it is larger than the sum of its proper divisors (1).

801740801 is an equidigital number, since it uses as much as digits as its factorization.

801740801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 801740801 is about 28315.0278297585. The cubic root of 801740801 is about 928.9906191227.

Adding to 801740801 its reverse (108047108), we get a palindrome (909787909).

The spelling of 801740801 in words is "eight hundred one million, seven hundred forty thousand, eight hundred one".