Names of 401981
| Nominal | 401981 |
| Cardinal | four hundred one thousand nine hundred eighty-one |
| Ordinal | 401,981st |
| This number as US currency | four hundred one thousand nine hundred eighty-one dollars |
| Is 401981 an odd number? | 401981 is an odd number |
| Is 401981 an even number? | 401981 is NOT an even number |
| Is 401981 a palindrome? | 401981 is NOT a palindrome number |
| Is 401981 a triangle number? | 401981 is NOT a triangle number |
401981 in other Bases
| Base 2 (Binary) | 11000100010001111012 |
| Base 3 (Ternary) | 2021021020123 |
| Base 4 (Quaternary) | 12020203314 |
| Base 5 (Quinary) | 1003304115 |
| Base 6 (Senary) | 123410056 |
| Base 8 (Octal) | 14210758 |
| Base 12 (Duodecimal) | 17476512 |
| Base 16 (Hexadecimal) | 6223D16 |
| Base 20 (Vigesimal) | 2A4J120 |
Primes and Factors tests for 401981
| Is 401981 a Prime Number? | 401981 is a prime |
| Is 401981 a perfect number? | 401981 is NOT a perfect number |
| Is 401981 a Mersenne Prime? | 401981 is NOT a Mersenne prime |
| Is 401981 a Fermat Prime? | 401981 is NOT a Fermat prime |
| Is 401981 a Fibonacci Prime? | 401981 is NOT a Fibonacci prime |
| Is 401981 a Partition Prime? | 401981 is NOT a Partition prime |
| Is 401981 a Pell Prime? | 401981 is NOT a Pell prime |
| Prime Factors | Prime factors of 401981 |
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401981 in other Numerals
| 401981 in Roman Numeral | CDMCMLXXXI |
| 401981 in Chinese Numeral | 肆拾萬壹仟玖佰捌拾壹 |
| 401981 in Egyptian Numeral | 𓆐𓆐𓆐𓆐𓆼𓍪𓎍𓏺 |
| 401981 in Babylonian Numeral |     |
Roots and stuff for 401981
| Is 401981 a square number? | 401981 is NOT a square number |
| Is 401981 a cube number? | 401981 is NOT a cube number |
| Square root of the number 401981 | 634.01971578177 |
| Cube root of the number 401981 | 73.802064165256 |
Recreational math for 401981
| Number 401981 reversed | 189104 |
| Sum of the digits | 23 |
| No of digits | 6 |