Search a number
-
+
129793 is a prime number
BaseRepresentation
bin11111101100000001
320121001011
4133230001
513123133
62440521
71050256
oct375401
9217034
10129793
1189574
1263141
1347101
143542d
15286cd
hex1fb01

129793 has 2 divisors, whose sum is σ = 129794. Its totient is φ = 129792.

The previous prime is 129769. The next prime is 129803. The reversal of 129793 is 397921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124609 + 5184 = 353^2 + 72^2 .

It is an emirp because it is prime and its reverse (397921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129793 - 29 = 129281 is a prime.

It is not a weakly prime, because it can be changed into another prime (129733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64896 + 64897.

It is an arithmetic number, because the mean of its divisors is an integer number (64897).

2129793 is an apocalyptic number.

It is an amenable number.

129793 is a deficient number, since it is larger than the sum of its proper divisors (1).

129793 is an equidigital number, since it uses as much as digits as its factorization.

129793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 31.

The square root of 129793 is about 360.2679558329. The cubic root of 129793 is about 50.6310682153.

The spelling of 129793 in words is "one hundred twenty-nine thousand, seven hundred ninety-three".