429 in words
429
four hundred and twenty-nine
429 is written four hundred and twenty-nine.
Ways to write it
- As an ordinal
- four hundred and twenty-ninth
- Roman numeral
- CDXXIX
- Expanded form
- 400 + 20 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 11, 13, 33, 39, 143 and 429 (8 factors)
- First 10 multiples
- 429, 858, 1,287, 1,716, 2,145, 2,574, 3,003, 3,432, 3,861, 4,290
- Square
- 429 × 429 = 1,84,041
- Square root
- ≈ 20.71
- Sum of the digits
- 4 + 2 + 9 = 15
- Rounded to the nearest 10
- 430
- Rounded to the nearest 100
- 400
- Number before
- 428
- Number after
- 430
- In binary
110101101
Quick check
What number comes just after 429?
Show the answer
430
Is 429 even or odd?
Show the answer
Odd
What is 429 + 10?
Show the answer
439
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Roman Numerals
Read and write Roman numerals from I to 3,999.Frequently asked questions
How do you write 429 in words?
429 is written "four hundred and twenty-nine".
Is 429 a prime number?
No. 429 is a composite number, because it has more than two factors.
What are the factors of 429?
The factors of 429 are 1, 3, 11, 13, 33, 39, 143 and 429.
How do you write 429 in Roman numerals?
429 in Roman numerals is CDXXIX.