121,980 in words
121,980
one hundred twenty-one thousand nine hundred eighty
121,980 is written one hundred twenty-one thousand nine hundred eighty.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand nine hundred eightieth
- Expanded form
- 100,000 + 20,000 + 1,000 + 900 + 80
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 9 | 900 |
| tens | 8 | 80 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 107, 114, 190, 214, 228, 285, 321, 380, 428, 535, 570, 642, 1,070, 1,140, 1,284, 1,605, 2,033, 2,140, 3,210, 4,066, 6,099, 6,420, 8,132, 10,165, 12,198, 20,330, 24,396, 30,495, 40,660, 60,990 and 121,980 (48 factors)
- First 10 multiples
- 121,980, 243,960, 365,940, 487,920, 609,900, 731,880, 853,860, 975,840, 1,097,820, 1,219,800
- Square
- 121,980 × 121,980 = 14,879,120,400
- Square root
- ≈ 349.26
- Sum of the digits
- 1 + 2 + 1 + 9 + 8 + 0 = 21
- Rounded to the nearest 10
- 121,980
- Rounded to the nearest 100
- 122,000
- Rounded to the nearest 1000
- 122,000
- Number before
- 121,979
- Number after
- 121,981
- In binary
11101110001111100
Quick check
What number comes just after 121,980?
Show the answer
121,981
Is 121,980 even or odd?
Show the answer
Even
What is 121,980 + 10?
Show the answer
121,990
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 121,980 in words?
121,980 is written "one hundred twenty-one thousand nine hundred eighty".
Is 121,980 a prime number?
No. 121,980 is a composite number, because it has more than two factors.
What are the factors of 121,980?
The factors of 121,980 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 107, 114, 190, 214, 228, 285, 321, 380, 428, 535, 570, 642, 1,070, 1,140, 1,284, 1,605, 2,033, 2,140, 3,210, 4,066, 6,099, 6,420, 8,132, 10,165, 12,198, 20,330, 24,396, 30,495, 40,660, 60,990 and 121,980.