Search a number
-
+
61060061 is a prime number
BaseRepresentation
bin1110100011101…
…1001111011101
311020220011122202
43220323033131
5111112410221
610020421245
71341000446
oct350731735
9136804582
1061060061
1131515367
1218547825
13c85b61a
1481762cd
155561d0b
hex3a3b3dd

61060061 has 2 divisors, whose sum is σ = 61060062. Its totient is φ = 61060060.

The previous prime is 61060033. The next prime is 61060063. The reversal of 61060061 is 16006016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 19971961 = 6410^2 + 4469^2 .

It is a cyclic number.

It is not a de Polignac number, because 61060061 - 218 = 60797917 is a prime.

It is a Sophie Germain prime.

Together with 61060063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61060063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530030 + 30530031.

It is an arithmetic number, because the mean of its divisors is an integer number (30530031).

Almost surely, 261060061 is an apocalyptic number.

It is an amenable number.

61060061 is a deficient number, since it is larger than the sum of its proper divisors (1).

61060061 is an equidigital number, since it uses as much as digits as its factorization.

61060061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 61060061 is about 7814.0937414392. The cubic root of 61060061 is about 393.7788726287.

Adding to 61060061 its reverse (16006016), we get a palindrome (77066077).

The spelling of 61060061 in words is "sixty-one million, sixty thousand, sixty-one".