Properties of the Number 65981

Sixty-Five Thousand Nine Hundred Eighty-One

Basics

Value: 65980 → 65981 → 65982

Parity: odd

Prime: Yes

Previous Prime: 65963

Next Prime: 65983

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 65981

Divisors: 1, 65981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000000110111101

Octal: 200675

Duodecimal: 32225

Hexadecimal: 101bd

Square: 4353492361

Square Root: 256.86767021172597

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Sequence shifts left ten places under Weigh transform with a(n) = signum(n) for n<10. A316082

Best approximation of the remainder in the ζ(4) series using the remainder in the ζ(3) series. A65981