Properties of the Number 8189

Eight Thousand One Hundred Eighty-Nine

Basics

Value: 8188 → 8189 → 8190

Parity: odd

Prime: No

Previous Prime: 8179

Next Prime: 8191

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 19 × 431

Divisors: 1, 19, 431, 8189

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111111111101

Octal: 17775

Duodecimal: 48A5

Hexadecimal: 1ffd

Square: 67059721

Square Root: 90.49309365912958

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

a(n) = 2ⁿ - 3. A36563

New record highs reached in A060030. A60482

a(n) = a(n-1) + 2·a(n-2) - 2·a(n-3). A136252

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 24. A51965

a(2·k) = 3·2^k - 3, a(2·k+1) = 2^k+2 - 3. A354788

a(n) = 4·n² - 6·n + 1. A125202

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250942

Positions of ones in A264977; positions of twos in A277330. A277701

Greatest number (in decimal representation) with n nonprime substrings in binary representation (substrings with leading zeros are considered to be nonprime). A217112

Sum of numbers in n-th upward diagonal of triangle in A079823. A79824