121,440 in words
121,440
one hundred twenty-one thousand four hundred forty
121,440 is written one hundred twenty-one thousand four hundred forty.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand four hundred fortieth
- Expanded form
- 100,000 + 20,000 + 1,000 + 400 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 96 factors: too many to list
- First 10 multiples
- 121,440, 242,880, 364,320, 485,760, 607,200, 728,640, 850,080, 971,520, 1,092,960, 1,214,400
- Square
- 121,440 × 121,440 = 14,747,673,600
- Square root
- ≈ 348.48
- Sum of the digits
- 1 + 2 + 1 + 4 + 4 + 0 = 12
- Rounded to the nearest 10
- 121,440
- Rounded to the nearest 100
- 121,400
- Rounded to the nearest 1000
- 121,000
- Number before
- 121,439
- Number after
- 121,441
- In binary
11101101001100000
Quick check
What number comes just after 121,440?
Show the answer
121,441
Is 121,440 even or odd?
Show the answer
Even
What is 121,440 + 10?
Show the answer
121,450
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 121,440 in words?
121,440 is written "one hundred twenty-one thousand four hundred forty".
Is 121,440 a prime number?
No. 121,440 is a composite number, because it has more than two factors.