40,121 in words
40,121
forty thousand one hundred and twenty-one
40,121 is written forty thousand one hundred and twenty-one.
Ways to write it
- As an ordinal
- forty thousand one hundred and twenty-first
- Expanded form
- 40,000 + 100 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 0 | 0 |
| hundreds | 1 | 100 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 53, 757 and 40,121 (4 factors)
- First 10 multiples
- 40,121, 80,242, 120,363, 160,484, 200,605, 240,726, 280,847, 320,968, 361,089, 401,210
- Square
- 40,121 × 40,121 = 1,609,694,641
- Square root
- ≈ 200.30
- Sum of the digits
- 4 + 0 + 1 + 2 + 1 = 8
- Rounded to the nearest 10
- 40,120
- Rounded to the nearest 100
- 40,100
- Rounded to the nearest 1000
- 40,000
- Number before
- 40,120
- Number after
- 40,122
- In binary
1001110010111001
Quick check
What number comes just after 40,121?
Show the answer
40,122
Is 40,121 even or odd?
Show the answer
Odd
What is 40,121 + 10?
Show the answer
40,131
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 40,121 in words?
40,121 is written "forty thousand one hundred and twenty-one".
Is 40,121 a prime number?
No. 40,121 is a composite number, because it has more than two factors.
What are the factors of 40,121?
The factors of 40,121 are 1, 53, 757 and 40,121.