Search a number
-
+
12881347752029 is a prime number
BaseRepresentation
bin1011101101110010110000…
…1010000011000001011101
31200121110000021100210222212
42323130230022003001131
53142022000011031104
643221335351050205
72466434543212241
oct273345412030135
950543007323885
1012881347752029
114116a48a98729
1215405a9370965
13725923a88173
14327663ab0421
15175117ba536e
hexbb72c28305d

12881347752029 has 2 divisors, whose sum is σ = 12881347752030. Its totient is φ = 12881347752028.

The previous prime is 12881347751977. The next prime is 12881347752061. The reversal of 12881347752029 is 92025774318821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12794914692004 + 86433060025 = 3576998^2 + 293995^2 .

It is a cyclic number.

It is not a de Polignac number, because 12881347752029 - 28 = 12881347751773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12881347752929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6440673876014 + 6440673876015.

It is an arithmetic number, because the mean of its divisors is an integer number (6440673876015).

Almost surely, 212881347752029 is an apocalyptic number.

It is an amenable number.

12881347752029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12881347752029 is an equidigital number, since it uses as much as digits as its factorization.

12881347752029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 12881347752029 in words is "twelve trillion, eight hundred eighty-one billion, three hundred forty-seven million, seven hundred fifty-two thousand, twenty-nine".