Search a number
-
+
13203132457 is a prime number
BaseRepresentation
bin11000100101111011…
…11101000000101001
31021002011000121210211
430102331331000221
5204020000214312
610022044541121
7645120526354
oct142275750051
937064017724
1013203132457
115665907919
1226858517a1
1313254b4a18
148d372529b
155241c93a7
hex312f7d029

13203132457 has 2 divisors, whose sum is σ = 13203132458. Its totient is φ = 13203132456.

The previous prime is 13203132443. The next prime is 13203132541. The reversal of 13203132457 is 75423130231.

13203132457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13181565721 + 21566736 = 114811^2 + 4644^2 .

It is a cyclic number.

It is not a de Polignac number, because 13203132457 - 27 = 13203132329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13203132157) 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, 6601566228 + 6601566229.

It is an arithmetic number, because the mean of its divisors is an integer number (6601566229).

Almost surely, 213203132457 is an apocalyptic number.

It is an amenable number.

13203132457 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203132457 is an equidigital number, since it uses as much as digits as its factorization.

13203132457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 13203132457 its reverse (75423130231), we get a palindrome (88626262688).

The spelling of 13203132457 in words is "thirteen billion, two hundred three million, one hundred thirty-two thousand, four hundred fifty-seven".