Search a number
-
+
12730262147 is a prime number
BaseRepresentation
bin10111101101100100…
…00110001010000011
31012212012020022200122
423312302012022003
5202032421342042
65503113410455
7630316304621
oct136662061203
935765208618
1012730262147
1154429a0409
122573409a2b
13127b53b2c5
1488a9d2511
154e791e7d2
hex2f6c86283

12730262147 has 2 divisors, whose sum is σ = 12730262148. Its totient is φ = 12730262146.

The previous prime is 12730262123. The next prime is 12730262177. The reversal of 12730262147 is 74126203721.

It is a weak prime.

It is an emirp because it is prime and its reverse (74126203721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12730262147 - 28 = 12730261891 is a prime.

It is not a weakly prime, because it can be changed into another prime (12730262177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6365131073 + 6365131074.

It is an arithmetic number, because the mean of its divisors is an integer number (6365131074).

Almost surely, 212730262147 is an apocalyptic number.

12730262147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12730262147 is an equidigital number, since it uses as much as digits as its factorization.

12730262147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

Adding to 12730262147 its reverse (74126203721), we get a palindrome (86856465868).

The spelling of 12730262147 in words is "twelve billion, seven hundred thirty million, two hundred sixty-two thousand, one hundred forty-seven".