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129348 = 22323593
BaseRepresentation
bin11111100101000100
320120102200
4133211010
513114343
62434500
71046052
oct374504
9216380
10129348
11891aa
1262a30
1346b4b
14351d2
15284d3
hex1f944

129348 has 18 divisors (see below), whose sum is σ = 327054. Its totient is φ = 43104.

The previous prime is 129347. The next prime is 129361. The reversal of 129348 is 843921.

It can be written as a sum of positive squares in only one way, i.e., 101124 + 28224 = 318^2 + 168^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1761 + ... + 1832.

2129348 is an apocalyptic number.

129348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

129348 is an abundant number, since it is smaller than the sum of its proper divisors (197706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129348 is a wasteful number, since it uses less digits than its factorization.

129348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603 (or 3598 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 129348 is about 359.6498296955. The cubic root of 129348 is about 50.5731384765.

The spelling of 129348 in words is "one hundred twenty-nine thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 3593 7186 10779 14372 21558 32337 43116 64674 129348