Number 20981

Names of 20981

Nominal 20981
Cardinal twenty thousand nine hundred eighty-one
Ordinal 20,981st
This number as US currency twenty thousand nine hundred eighty-one dollars

Properties (and some facts) of 20981

Is 20981 an odd number? 20981 is an odd number
Is 20981 an even number? 20981 is NOT an even number
Is 20981 a palindrome? 20981 is NOT a palindrome number
Is 20981 a triangle number? 20981 is NOT a triangle number

20981 in other Bases

Base 2 (Binary) 1010001111101012
Base 3 (Ternary) 10012100023
Base 4 (Quaternary) 110133114
Base 5 (Quinary) 11324115
Base 6 (Senary) 2410456
Base 8 (Octal) 507658
Base 12 (Duodecimal) 1018512
Base 16 (Hexadecimal) 51F516
Base 20 (Vigesimal) 2C9120

Primes and Factors tests for 20981

Is 20981 a Prime Number? 20981 is a prime
Is 20981 a perfect number? 20981 is NOT a perfect number
Is 20981 a Mersenne Prime? 20981 is NOT a Mersenne prime
Is 20981 a Fermat Prime? 20981 is NOT a Fermat prime
Is 20981 a Fibonacci Prime? 20981 is NOT a Fibonacci prime
Is 20981 a Partition Prime? 20981 is NOT a Partition prime
Is 20981 a Pell Prime? 20981 is NOT a Pell prime
Prime Factors Prime factors of 20981

Sponsored

20981 in other Numerals

20981 in Roman Numeral XXCMLXXXI
20981 in Chinese Numeral 貳萬玖佰捌拾壹
20981 in Egyptian Numeral 𓂮𓍪𓎍𓏺
20981 in Babylonian Numeral 5   49   41  

Roots and stuff for 20981

Is 20981 a square number? 20981 is NOT a square number
Is 20981 a cube number? 20981 is NOT a cube number
Square root of the number 20981 144.84819639885
Cube root of the number 20981 27.580918688196

Recreational math for 20981

Number 20981 reversed 18902
Sum of the digits 20
No of digits 5

Other pages about 20981