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13489832 = 231686229
BaseRepresentation
bin110011011101…
…011010101000
3221101100120102
4303131122220
511423133312
61201044532
7222442646
oct63353250
927340512
1013489832
117684124
124626748
132a44165
141b12196
1512b6ec2
hexcdd6a8

13489832 has 8 divisors (see below), whose sum is σ = 25293450. Its totient is φ = 6744912.

The previous prime is 13489783. The next prime is 13489837. The reversal of 13489832 is 23898431.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 630436 = 3586^2 + 794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13489837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843107 + ... + 843122.

Almost surely, 213489832 is an apocalyptic number.

It is an amenable number.

13489832 is a deficient number, since it is larger than the sum of its proper divisors (11803618).

13489832 is a wasteful number, since it uses less digits than its factorization.

13489832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686235 (or 1686231 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 13489832 is about 3672.8506639938. The cubic root of 13489832 is about 238.0503624326.

The spelling of 13489832 in words is "thirteen million, four hundred eighty-nine thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 1686229 3372458 6744916 13489832