388,221 in words
388,221
three hundred and eighty-eight thousand two hundred and twenty-one
388,221 is written three hundred and eighty-eight thousand two hundred and twenty-one.
Ways to write it
- As an ordinal
- three hundred and eighty-eight thousand two hundred and twenty-first
- Expanded form
- 300,000 + 80,000 + 8,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 3 | 300,000 |
| ten thousands | 8 | 80,000 |
| thousands | 8 | 8,000 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 151, 453, 857, 2,571, 129,407 and 388,221 (8 factors)
- First 10 multiples
- 388,221, 776,442, 1,164,663, 1,552,884, 1,941,105, 2,329,326, 2,717,547, 3,105,768, 3,493,989, 3,882,210
- Square
- 388,221 × 388,221 = 150,715,544,841
- Square root
- ≈ 623.07
- Sum of the digits
- 3 + 8 + 8 + 2 + 2 + 1 = 24
- Rounded to the nearest 10
- 388,220
- Rounded to the nearest 100
- 388,200
- Rounded to the nearest 1000
- 388,000
- Number before
- 388,220
- Number after
- 388,222
- In binary
1011110110001111101
Quick check
What number comes just after 388,221?
Show the answer
388,222
Is 388,221 even or odd?
Show the answer
Odd
What is 388,221 + 10?
Show the answer
388,231
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 388,221 in words?
388,221 is written "three hundred and eighty-eight thousand two hundred and twenty-one".
Is 388,221 a prime number?
No. 388,221 is a composite number, because it has more than two factors.
What are the factors of 388,221?
The factors of 388,221 are 1, 3, 151, 453, 857, 2,571, 129,407 and 388,221.