Names of 990991
| Nominal | 990991 |
| Cardinal | nine hundred ninety thousand nine hundred ninety-one |
| Ordinal | 990,991st |
| This number as US currency | nine hundred ninety thousand nine hundred ninety-one dollars |
| Is 990991 an odd number? | 990991 is an odd number |
| Is 990991 an even number? | 990991 is NOT an even number |
| Is 990991 a palindrome? | 990991 is NOT a palindrome number |
| Is 990991 a triangle number? | 990991 is NOT a triangle number |
990991 in other Bases
| Base 2 (Binary) | 111100011111000011112 |
| Base 3 (Ternary) | 12121001011013 |
| Base 4 (Quaternary) | 33013300334 |
| Base 5 (Quinary) | 2232024315 |
| Base 6 (Senary) | 331235316 |
| Base 8 (Octal) | 36174178 |
| Base 12 (Duodecimal) | 3B95A712 |
| Base 16 (Hexadecimal) | F1F0F16 |
| Base 20 (Vigesimal) | 63H9B20 |
Primes and Factors tests for 990991
| Is 990991 a Prime Number? | 990991 is NOT a prime |
| Is 990991 a perfect number? | 990991 is NOT a perfect number |
| Is 990991 a Mersenne Prime? | 990991 is NOT a Mersenne prime |
| Is 990991 a Fermat Prime? | 990991 is NOT a Fermat prime |
| Is 990991 a Fibonacci Prime? | 990991 is NOT a Fibonacci prime |
| Is 990991 a Partition Prime? | 990991 is NOT a Partition prime |
| Is 990991 a Pell Prime? | 990991 is NOT a Pell prime |
| Prime Factors | Prime factors of 990991 |
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990991 in other Numerals
| 990991 in Roman Numeral | CMXCCMXCI |
| 990991 in Chinese Numeral | 玖拾萬玖萬玖佰玖拾壹 |
| 990991 in Egyptian Numeral | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂵𓍪𓎎𓏺 |
| 990991 in Babylonian Numeral |     |
Roots and stuff for 990991
| Is 990991 a square number? | 990991 is NOT a square number |
| Is 990991 a cube number? | 990991 is NOT a cube number |
| Square root of the number 990991 | 995.4853087816 |
| Cube root of the number 990991 | 99.698793658298 |
Recreational math for 990991
| Number 990991 reversed | 199099 |
| Sum of the digits | 37 |
| No of digits | 6 |