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129604 = 2232401
BaseRepresentation
bin11111101001000100
320120210011
4133221010
513121404
62440004
71046566
oct375104
9216704
10129604
1189412
1263004
1346cb7
1435336
1528604
hex1fa44

129604 has 6 divisors (see below), whose sum is σ = 226814. Its totient is φ = 64800.

The previous prime is 129593. The next prime is 129607. The reversal of 129604 is 406921.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 4 = 360^2 + 2^2 .

It is not an unprimeable number, because it can be changed into a prime (129607) by changing a digit.

129604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16197 + ... + 16204.

129604 is a Friedman number, since it can be written as 4*(60^2*9+1), using all its digits and the basic arithmetic operations.

2129604 is an apocalyptic number.

It is an amenable number.

129604 is a deficient number, since it is larger than the sum of its proper divisors (97210).

129604 is a wasteful number, since it uses less digits than its factorization.

129604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32405 (or 32403 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 129604 is about 360.0055555127. The cubic root of 129604 is about 50.6064805502.

The spelling of 129604 in words is "one hundred twenty-nine thousand, six hundred four".

Divisors: 1 2 4 32401 64802 129604