odd, composite, perfect square · 49th positive integer
The number 49
49 is an odd composite number. It is the 49th positive integer.
Quick reference
| Prime factorization | 7 × 7 |
| Divisors | 1, 7, 49 |
| Binary | 110001 |
| Hexadecimal | 0x31 |
| Roman numeral | XLIX |
| Digit sum | 13 |
| Properties | odd, composite, perfect square |
Reading 49 in NumGrid context
The 49 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 49 sits in the broader integer properties and number-guessing puzzles distribution and which underlying factors drive the headline numbers.
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 49 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 49 a prime number?
No. 49 is composite. Its prime factorization is 7 × 7.
What are the factors of 49?
The factors (divisors) of 49 are 1, 7, 49.
What is 49 in binary?
49 in binary is 110001. In hexadecimal it's 31.
What is 49 as a Roman numeral?
49 in Roman numerals is XLIX.
What's the digit sum of 49?
Adding the digits of 49: 4 + 9 = 13.