21,464 in words
21,464
twenty-one thousand four hundred sixty-four
21,464 is written twenty-one thousand four hundred sixty-four.
Ways to write it
- As an ordinal
- twenty-one thousand four hundred sixty-fourth
- Expanded form
- 20,000 + 1,000 + 400 + 60 + 4
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 6 | 60 |
| ones | 4 | 4 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 8, 2,683, 5,366, 10,732 and 21,464 (8 factors)
- First 10 multiples
- 21,464, 42,928, 64,392, 85,856, 107,320, 128,784, 150,248, 171,712, 193,176, 214,640
- Square
- 21,464 × 21,464 = 460,703,296
- Square root
- ≈ 146.51
- Sum of the digits
- 2 + 1 + 4 + 6 + 4 = 17
- Rounded to the nearest 10
- 21,460
- Rounded to the nearest 100
- 21,500
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,463
- Number after
- 21,465
- In binary
101001111011000
Quick check
What number comes just after 21,464?
Show the answer
21,465
Is 21,464 even or odd?
Show the answer
Even
What is 21,464 + 10?
Show the answer
21,474
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 21,464 in words?
21,464 is written "twenty-one thousand four hundred sixty-four".
Is 21,464 a prime number?
No. 21,464 is a composite number, because it has more than two factors.
What are the factors of 21,464?
The factors of 21,464 are 1, 2, 4, 8, 2,683, 5,366, 10,732 and 21,464.