Properties of the Number 81483

Eighty-One Thousand Four Hundred Eighty-Three

Basics

Value: 81482 → 81483 → 81484

Parity: odd

Prime: No

Previous Prime: 81463

Next Prime: 81509

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 157 × 173

Divisors: 1, 3, 157, 173, 471, 519, 27161, 81483

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011111001001011

Octal: 237113

Duodecimal: 3B1A3

Hexadecimal: 13e4b

Square: 6639479289

Square Root: 285.4522727182252

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

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A237965

Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A237960

Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A237957

Consider the mapping f(a/b) = (a² + b)/(a² - b). Taking a =2, b = 1 to start with and carrying out this mapping repeatedly on each new (reduced) rational number gives the following sequence 2/1,5/3,14/11,207/185,... Sequence contains the numerator. A81483