342,840 in words
342,840
three hundred forty-two thousand eight hundred forty
342,840 is written three hundred forty-two thousand eight hundred forty.
Ways to write it
- As an ordinal
- three hundred forty-two thousand eight hundred fortieth
- Expanded form
- 300,000 + 40,000 + 2,000 + 800 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 3 | 300,000 |
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 8 | 800 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2,857, 5,714, 8,571, 11,428, 14,285, 17,142, 22,856, 28,570, 34,284, 42,855, 57,140, 68,568, 85,710, 114,280, 171,420 and 342,840 (32 factors)
- First 10 multiples
- 342,840, 685,680, 1,028,520, 1,371,360, 1,714,200, 2,057,040, 2,399,880, 2,742,720, 3,085,560, 3,428,400
- Square
- 342,840 × 342,840 = 117,539,265,600
- Square root
- ≈ 585.53
- Sum of the digits
- 3 + 4 + 2 + 8 + 4 + 0 = 21
- Rounded to the nearest 10
- 342,840
- Rounded to the nearest 100
- 342,800
- Rounded to the nearest 1000
- 343,000
- Number before
- 342,839
- Number after
- 342,841
- In binary
1010011101100111000
Quick check
What number comes just after 342,840?
Show the answer
342,841
Is 342,840 even or odd?
Show the answer
Even
What is 342,840 + 10?
Show the answer
342,850
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 342,840 in words?
342,840 is written "three hundred forty-two thousand eight hundred forty".
Is 342,840 a prime number?
No. 342,840 is a composite number, because it has more than two factors.
What are the factors of 342,840?
The factors of 342,840 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2,857, 5,714, 8,571, 11,428, 14,285, 17,142, 22,856, 28,570, 34,284, 42,855, 57,140, 68,568, 85,710, 114,280, 171,420 and 342,840.