7,18,121 in words
7,18,121
seven lakh eighteen thousand one hundred and twenty-one
7,18,121 is written seven lakh eighteen thousand one hundred and twenty-one.
Ways to write it
- International system
- seven hundred and eighteen thousand one hundred and twenty-one
- Indian system
- seven lakh eighteen thousand one hundred and twenty-one
- As an ordinal
- seven lakh eighteen thousand one hundred and twenty-first
- Expanded form
- 7,00,000 + 10,000 + 8,000 + 100 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| lakhs | 7 | 7,00,000 |
| ten thousands | 1 | 10,000 |
| thousands | 8 | 8,000 |
| hundreds | 1 | 100 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 7,18,121 (2 factors)
- First 10 multiples
- 7,18,121, 14,36,242, 21,54,363, 28,72,484, 35,90,605, 43,08,726, 50,26,847, 57,44,968, 64,63,089, 71,81,210
- Square
- 7,18,121 × 7,18,121 = 5,15,69,77,70,641
- Square root
- ≈ 847.42
- Sum of the digits
- 7 + 1 + 8 + 1 + 2 + 1 = 20
- Rounded to the nearest 10
- 7,18,120
- Rounded to the nearest 100
- 7,18,100
- Rounded to the nearest 1000
- 7,18,000
- Number before
- 7,18,120
- Number after
- 7,18,122
- In binary
10101111010100101001
Quick check
What number comes just after 7,18,121?
Show the answer
7,18,122
Is 7,18,121 even or odd?
Show the answer
Odd
What is 7,18,121 + 10?
Show the answer
7,18,131
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 7,18,121 in words?
7,18,121 is written "seven lakh eighteen thousand one hundred and twenty-one".
Is 7,18,121 a prime number?
Yes. 7,18,121 is a prime number: its only factors are 1 and 7,18,121.
What are the factors of 7,18,121?
The factors of 7,18,121 are 1 and 7,18,121.