odd, composite, perfect square · 169th positive integer
The number 169
169 is an odd composite number. It is the 169th positive integer.
Quick reference
| Prime factorization | 13 × 13 |
| Divisors | 1, 13, 169 |
| Binary | 10101001 |
| Hexadecimal | 0xA9 |
| Roman numeral | CLXIX |
| Digit sum | 16 |
| Properties | odd, composite, perfect square |
Reading 169 in NumGrid context
For 169, the underlying data on this page comes from classical number theory plus NumGrid solver-derived puzzle statistics. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
Every number on this page links back to classical number theory plus NumGrid solver-derived puzzle statistics; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for 169 is typically a peer within positive integers within the NumGrid target pool with similar size, similar exposure, or similar geography — not the national-level summary alone.
Frequently asked
Is 169 a prime number?
No. 169 is composite. Its prime factorization is 13 × 13.
What are the factors of 169?
The factors (divisors) of 169 are 1, 13, 169.
What is 169 in binary?
169 in binary is 10101001. In hexadecimal it's A9.
What is 169 as a Roman numeral?
169 in Roman numerals is CLXIX.
What's the digit sum of 169?
Adding the digits of 169: 1 + 6 + 9 = 16.