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1230606653 is a prime number
BaseRepresentation
bin100100101011001…
…1001000100111101
310011202121021222012
41021112121010331
510010013403103
6322040101005
742331661333
oct11126310475
93152537865
101230606653
11581710aa1
122a4164765
13167c4c623
14b9619b53
15730842d8
hex4959913d

1230606653 has 2 divisors, whose sum is σ = 1230606654. Its totient is φ = 1230606652.

The previous prime is 1230606617. The next prime is 1230606691. The reversal of 1230606653 is 3566060321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 649893049 + 580713604 = 25493^2 + 24098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230606653 - 26 = 1230606589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230600653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615303326 + 615303327.

It is an arithmetic number, because the mean of its divisors is an integer number (615303327).

Almost surely, 21230606653 is an apocalyptic number.

It is an amenable number.

1230606653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230606653 is an equidigital number, since it uses as much as digits as its factorization.

1230606653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 1230606653 is about 35080.0036060431. The cubic root of 1230606653 is about 1071.6173906198.

Adding to 1230606653 its reverse (3566060321), we get a palindrome (4796666974).

The spelling of 1230606653 in words is "one billion, two hundred thirty million, six hundred six thousand, six hundred fifty-three".