13,921 in words
13,921
thirteen thousand nine hundred and twenty-one
13,921 is written thirteen thousand nine hundred and twenty-one.
Ways to write it
- As an ordinal
- thirteen thousand nine hundred and twenty-first
- Expanded form
- 10,000 + 3,000 + 900 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 3 | 3,000 |
| hundreds | 9 | 900 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 13,921 (2 factors)
- First 10 multiples
- 13,921, 27,842, 41,763, 55,684, 69,605, 83,526, 97,447, 111,368, 125,289, 139,210
- Square
- 13,921 × 13,921 = 193,794,241
- Square root
- ≈ 117.99
- Sum of the digits
- 1 + 3 + 9 + 2 + 1 = 16
- Rounded to the nearest 10
- 13,920
- Rounded to the nearest 100
- 13,900
- Rounded to the nearest 1000
- 14,000
- Number before
- 13,920
- Number after
- 13,922
- In binary
11011001100001
Quick check
What number comes just after 13,921?
Show the answer
13,922
Is 13,921 even or odd?
Show the answer
Odd
What is 13,921 + 10?
Show the answer
13,931
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 13,921 in words?
13,921 is written "thirteen thousand nine hundred and twenty-one".
Is 13,921 a prime number?
Yes. 13,921 is a prime number: its only factors are 1 and 13,921.
What are the factors of 13,921?
The factors of 13,921 are 1 and 13,921.