15,420 in words
15,420
fifteen thousand four hundred and twenty
15,420 is written fifteen thousand four hundred and twenty.
Ways to write it
- As an ordinal
- fifteen thousand four hundred and twentieth
- Expanded form
- 10,000 + 5,000 + 400 + 20
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 5 | 5,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1,028, 1,285, 1,542, 2,570, 3,084, 3,855, 5,140, 7,710 and 15,420 (24 factors)
- First 10 multiples
- 15,420, 30,840, 46,260, 61,680, 77,100, 92,520, 107,940, 123,360, 138,780, 154,200
- Square
- 15,420 × 15,420 = 237,776,400
- Square root
- ≈ 124.18
- Sum of the digits
- 1 + 5 + 4 + 2 + 0 = 12
- Rounded to the nearest 10
- 15,420
- Rounded to the nearest 100
- 15,400
- Rounded to the nearest 1000
- 15,000
- Number before
- 15,419
- Number after
- 15,421
- In binary
11110000111100
Quick check
What number comes just after 15,420?
Show the answer
15,421
Is 15,420 even or odd?
Show the answer
Even
What is 15,420 + 10?
Show the answer
15,430
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 15,420 in words?
15,420 is written "fifteen thousand four hundred and twenty".
Is 15,420 a prime number?
No. 15,420 is a composite number, because it has more than two factors.
What are the factors of 15,420?
The factors of 15,420 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1,028, 1,285, 1,542, 2,570, 3,084, 3,855, 5,140, 7,710 and 15,420.