830 in words
830
eight hundred and thirty
830 is written eight hundred and thirty.
Ways to write it
- As an ordinal
- eight hundred and thirtieth
- Roman numeral
- DCCCXXX
- Expanded form
- 800 + 30
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 8 | 800 |
| tens | 3 | 30 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 5, 10, 83, 166, 415 and 830 (8 factors)
- First 10 multiples
- 830, 1,660, 2,490, 3,320, 4,150, 4,980, 5,810, 6,640, 7,470, 8,300
- Square
- 830 × 830 = 688,900
- Square root
- ≈ 28.81
- Sum of the digits
- 8 + 3 + 0 = 11
- Rounded to the nearest 10
- 830
- Rounded to the nearest 100
- 800
- Number before
- 829
- Number after
- 831
- In binary
1100111110
Quick check
What number comes just after 830?
Show the answer
831
Is 830 even or odd?
Show the answer
Even
What is 830 + 10?
Show the answer
840
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 830 in words?
830 is written "eight hundred and thirty".
Is 830 a prime number?
No. 830 is a composite number, because it has more than two factors.
What are the factors of 830?
The factors of 830 are 1, 2, 5, 10, 83, 166, 415 and 830.
How do you write 830 in Roman numerals?
830 in Roman numerals is DCCCXXX.