121,680 in words
121,680
one hundred twenty-one thousand six hundred eighty
121,680 is written one hundred twenty-one thousand six hundred eighty.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand six hundred eightieth
- Expanded form
- 100,000 + 20,000 + 1,000 + 600 + 80
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 6 | 600 |
| tens | 8 | 80 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 90 factors: too many to list
- First 10 multiples
- 121,680, 243,360, 365,040, 486,720, 608,400, 730,080, 851,760, 973,440, 1,095,120, 1,216,800
- Square
- 121,680 × 121,680 = 14,806,022,400
- Square root
- ≈ 348.83
- Sum of the digits
- 1 + 2 + 1 + 6 + 8 + 0 = 18
- Rounded to the nearest 10
- 121,680
- Rounded to the nearest 100
- 121,700
- Rounded to the nearest 1000
- 122,000
- Number before
- 121,679
- Number after
- 121,681
- In binary
11101101101010000
Quick check
What number comes just after 121,680?
Show the answer
121,681
Is 121,680 even or odd?
Show the answer
Even
What is 121,680 + 10?
Show the answer
121,690
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 121,680 in words?
121,680 is written "one hundred twenty-one thousand six hundred eighty".
Is 121,680 a prime number?
No. 121,680 is a composite number, because it has more than two factors.