23,840 in words
23,840
twenty-three thousand eight hundred forty
23,840 is written twenty-three thousand eight hundred forty.
Ways to write it
- As an ordinal
- twenty-three thousand eight hundred fortieth
- Expanded form
- 20,000 + 3,000 + 800 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 3 | 3,000 |
| hundreds | 8 | 800 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 1,192, 1,490, 2,384, 2,980, 4,768, 5,960, 11,920 and 23,840 (24 factors)
- First 10 multiples
- 23,840, 47,680, 71,520, 95,360, 119,200, 143,040, 166,880, 190,720, 214,560, 238,400
- Square
- 23,840 × 23,840 = 568,345,600
- Square root
- ≈ 154.40
- Sum of the digits
- 2 + 3 + 8 + 4 + 0 = 17
- Rounded to the nearest 10
- 23,840
- Rounded to the nearest 100
- 23,800
- Rounded to the nearest 1000
- 24,000
- Number before
- 23,839
- Number after
- 23,841
- In binary
101110100100000
Quick check
What number comes just after 23,840?
Show the answer
23,841
Is 23,840 even or odd?
Show the answer
Even
What is 23,840 + 10?
Show the answer
23,850
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 23,840 in words?
23,840 is written "twenty-three thousand eight hundred forty".
Is 23,840 a prime number?
No. 23,840 is a composite number, because it has more than two factors.
What are the factors of 23,840?
The factors of 23,840 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 1,192, 1,490, 2,384, 2,980, 4,768, 5,960, 11,920 and 23,840.