87,021 in words
87,021
eighty-seven thousand and twenty-one
87,021 is written eighty-seven thousand and twenty-one.
Ways to write it
- As an ordinal
- eighty-seven thousand and twenty-first
- Expanded form
- 80,000 + 7,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 8 | 80,000 |
| thousands | 7 | 7,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 11, 27, 33, 99, 293, 297, 879, 2,637, 3,223, 7,911, 9,669, 29,007 and 87,021 (16 factors)
- First 10 multiples
- 87,021, 174,042, 261,063, 348,084, 435,105, 522,126, 609,147, 696,168, 783,189, 870,210
- Square
- 87,021 × 87,021 = 7,572,654,441
- Square root
- ≈ 294.99
- Sum of the digits
- 8 + 7 + 0 + 2 + 1 = 18
- Rounded to the nearest 10
- 87,020
- Rounded to the nearest 100
- 87,000
- Rounded to the nearest 1000
- 87,000
- Number before
- 87,020
- Number after
- 87,022
- In binary
10101001111101101
Quick check
What number comes just after 87,021?
Show the answer
87,022
Is 87,021 even or odd?
Show the answer
Odd
What is 87,021 + 10?
Show the answer
87,031
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 87,021 in words?
87,021 is written "eighty-seven thousand and twenty-one".
Is 87,021 a prime number?
No. 87,021 is a composite number, because it has more than two factors.
What are the factors of 87,021?
The factors of 87,021 are 1, 3, 9, 11, 27, 33, 99, 293, 297, 879, 2,637, 3,223, 7,911, 9,669, 29,007 and 87,021.