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129033 = 3759
BaseRepresentation
bin11111100000001001
320120000000
4133200021
513112113
62433213
71045122
oct374011
9216000
10129033
1188a43
1262809
1346968
1435049
1528373
hex1f809

129033 has 16 divisors (see below), whose sum is σ = 196800. Its totient is φ = 84564.

The previous prime is 129023. The next prime is 129037. The reversal of 129033 is 330921.

It is not a de Polignac number, because 129033 - 25 = 129001 is a prime.

It is a Curzon number.

129033 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 128997 and 129015.

It is not an unprimeable number, because it can be changed into a prime (129037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2158 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (12300).

2129033 is an apocalyptic number.

It is an amenable number.

129033 is a deficient number, since it is larger than the sum of its proper divisors (67767).

129033 is an frugal number, since it uses more digits than its factorization.

129033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 129033 is about 359.2116367826. The cubic root of 129033 is about 50.5320516720.

Adding to 129033 its reverse (330921), we get a palindrome (459954).

It can be divided in two parts, 12 and 9033, that added together give a triangular number (9045 = T134).

The spelling of 129033 in words is "one hundred twenty-nine thousand, thirty-three".

Divisors: 1 3 9 27 59 81 177 243 531 729 1593 2187 4779 14337 43011 129033