Search a number
-
+
68061101 is a prime number
BaseRepresentation
bin1000000111010…
…00011110101101
311202001212021112
410003220132231
5114410423401
610430441405
71454336603
oct403503655
9152055245
1068061101
1135467349
121a963265
1311140154
149079873
155e963bb
hex40e87ad

68061101 has 2 divisors, whose sum is σ = 68061102. Its totient is φ = 68061100.

The previous prime is 68061083. The next prime is 68061127. The reversal of 68061101 is 10116086.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43903876 + 24157225 = 6626^2 + 4915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68061101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68061001) 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, 34030550 + 34030551.

It is an arithmetic number, because the mean of its divisors is an integer number (34030551).

Almost surely, 268061101 is an apocalyptic number.

It is an amenable number.

68061101 is a deficient number, since it is larger than the sum of its proper divisors (1).

68061101 is an equidigital number, since it uses as much as digits as its factorization.

68061101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 68061101 is about 8249.9152116855. The cubic root of 68061101 is about 408.2877251666.

Adding to 68061101 its reverse (10116086), we get a palindrome (78177187).

The spelling of 68061101 in words is "sixty-eight million, sixty-one thousand, one hundred one".