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129932 = 22112953
BaseRepresentation
bin11111101110001100
320121020022
4133232030
513124212
62441312
71050545
oct375614
9217208
10129932
1189690
1263238
13471aa
14354cc
1528772
hex1fb8c

129932 has 12 divisors (see below), whose sum is σ = 248136. Its totient is φ = 59040.

The previous prime is 129919. The next prime is 129937. The reversal of 129932 is 239921.

It is not an unprimeable number, because it can be changed into a prime (129937) by changing a digit.

129932 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433 + ... + 1520.

It is an arithmetic number, because the mean of its divisors is an integer number (20678).

2129932 is an apocalyptic number.

It is an amenable number.

129932 is a deficient number, since it is larger than the sum of its proper divisors (118204).

129932 is a wasteful number, since it uses less digits than its factorization.

129932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2966 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 129932 is about 360.4608161784. The cubic root of 129932 is about 50.6491359788.

It can be divided in two parts, 1299 and 32, that added together give a palindrome (1331).

The spelling of 129932 in words is "one hundred twenty-nine thousand, nine hundred thirty-two".

Divisors: 1 2 4 11 22 44 2953 5906 11812 32483 64966 129932