121,842 in words
121,842
one hundred twenty-one thousand eight hundred forty-two
121,842 is written one hundred twenty-one thousand eight hundred forty-two.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand eight hundred forty-second
- Expanded form
- 100,000 + 20,000 + 1,000 + 800 + 40 + 2
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 8 | 800 |
| tens | 4 | 40 |
| ones | 2 | 2 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 967, 1,934, 2,901, 5,802, 6,769, 8,703, 13,538, 17,406, 20,307, 40,614, 60,921 and 121,842 (24 factors)
- First 10 multiples
- 121,842, 243,684, 365,526, 487,368, 609,210, 731,052, 852,894, 974,736, 1,096,578, 1,218,420
- Square
- 121,842 × 121,842 = 14,845,472,964
- Square root
- ≈ 349.06
- Sum of the digits
- 1 + 2 + 1 + 8 + 4 + 2 = 18
- Rounded to the nearest 10
- 121,840
- Rounded to the nearest 100
- 121,800
- Rounded to the nearest 1000
- 122,000
- Number before
- 121,841
- Number after
- 121,843
- In binary
11101101111110010
Quick check
What number comes just after 121,842?
Show the answer
121,843
Is 121,842 even or odd?
Show the answer
Even
What is 121,842 + 10?
Show the answer
121,852
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
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How do you write 121,842 in words?
121,842 is written "one hundred twenty-one thousand eight hundred forty-two".
Is 121,842 a prime number?
No. 121,842 is a composite number, because it has more than two factors.
What are the factors of 121,842?
The factors of 121,842 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 967, 1,934, 2,901, 5,802, 6,769, 8,703, 13,538, 17,406, 20,307, 40,614, 60,921 and 121,842.