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129193 is a prime number
BaseRepresentation
bin11111100010101001
320120012221
4133202221
513113233
62434041
71045441
oct374251
9216187
10129193
1189079
1262921
1346a5c
1435121
152842d
hex1f8a9

129193 has 2 divisors, whose sum is σ = 129194. Its totient is φ = 129192.

The previous prime is 129187. The next prime is 129197. The reversal of 129193 is 391921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107584 + 21609 = 328^2 + 147^2 .

It is an emirp because it is prime and its reverse (391921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129193 - 213 = 121001 is a prime.

It is not a weakly prime, because it can be changed into another prime (129197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64596 + 64597.

It is an arithmetic number, because the mean of its divisors is an integer number (64597).

2129193 is an apocalyptic number.

It is an amenable number.

129193 is a deficient number, since it is larger than the sum of its proper divisors (1).

129193 is an equidigital number, since it uses as much as digits as its factorization.

129193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 25.

The square root of 129193 is about 359.4342777199. The cubic root of 129193 is about 50.5529295062.

The spelling of 129193 in words is "one hundred twenty-nine thousand, one hundred ninety-three".