27,840 in words
27,840
twenty-seven thousand eight hundred forty
27,840 is written twenty-seven thousand eight hundred forty.
Ways to write it
- As an ordinal
- twenty-seven thousand eight hundred fortieth
- Expanded form
- 20,000 + 7,000 + 800 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 7 | 7,000 |
| hundreds | 8 | 800 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 56 factors: too many to list
- First 10 multiples
- 27,840, 55,680, 83,520, 111,360, 139,200, 167,040, 194,880, 222,720, 250,560, 278,400
- Square
- 27,840 × 27,840 = 775,065,600
- Square root
- ≈ 166.85
- Sum of the digits
- 2 + 7 + 8 + 4 + 0 = 21
- Rounded to the nearest 10
- 27,840
- Rounded to the nearest 100
- 27,800
- Rounded to the nearest 1000
- 28,000
- Number before
- 27,839
- Number after
- 27,841
- In binary
110110011000000
Quick check
What number comes just after 27,840?
Show the answer
27,841
Is 27,840 even or odd?
Show the answer
Even
What is 27,840 + 10?
Show the answer
27,850
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 27,840 in words?
27,840 is written "twenty-seven thousand eight hundred forty".
Is 27,840 a prime number?
No. 27,840 is a composite number, because it has more than two factors.