Search a number
-
+
64808801 is a prime number
BaseRepresentation
bin1111011100111…
…0011101100001
311111221121221222
43313032131201
5113042340201
610233024425
71414602641
oct367163541
9144847858
1064808801
11336458a2
1219855115
1310571a05
148870521
155a5291b
hex3dce761

64808801 has 2 divisors, whose sum is σ = 64808802. Its totient is φ = 64808800.

The previous prime is 64808797. The next prime is 64808813. The reversal of 64808801 is 10880846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63760225 + 1048576 = 7985^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 64808801 - 22 = 64808797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64808101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32404400 + 32404401.

It is an arithmetic number, because the mean of its divisors is an integer number (32404401).

Almost surely, 264808801 is an apocalyptic number.

It is an amenable number.

64808801 is a deficient number, since it is larger than the sum of its proper divisors (1).

64808801 is an equidigital number, since it uses as much as digits as its factorization.

64808801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 64808801 is about 8050.3913569466. The cubic root of 64808801 is about 401.6779534218.

The spelling of 64808801 in words is "sixty-four million, eight hundred eight thousand, eight hundred one".