21409

21409 is a natural number following 21408 and preceding 21410. It is an integer. In base-10, the number is represented as two, one, four, zero, nine. Its prime factorization is 21409 = 13 * 1647. 1647 is further divisible by 3, resulting in 1647 = 3 * 549. 549 is divisible by 3, resulting in 549 = 3 * 183. 183 is divisible by 3, resulting in 183 = 3 * 61. Therefore, the prime factorization of 21409 is 3^3 * 13 * 61.

The number 21409 can be expressed in Roman numerals. It is written as XXI CCCC IX. In scientific notation, it is 2.1409 x 10^4.

In binary representation, 21409 is 101001110100001. In hexadecimal, it is 53A1.

Mathematical properties of 21409 include that it is an odd number and a composite number. It is not a perfect square or a perfect cube. Its sum of digits is 2+1+4+0+9 = 16.

The significance of 21409 is not widely recognized in general mathematics or popular culture. It does not hold a prominent position in mathematical constants or famous theorems. Its occurrence is typically within the sequence of natural numbers or in specific calculations and datasets where it may arise incidentally.