Properties of the Number 86123

Eighty-Six Thousand One Hundred Twenty-Three

Basics

Value: 86122 → 86123 → 86124

Parity: odd

Prime: No

Previous Prime: 86117

Next Prime: 86131

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 71 × 1213

Divisors: 1, 71, 1213, 86123

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10101000001101011

Octal: 250153

Duodecimal: 41A0B

Hexadecimal: 1506b

Square: 7417171129

Square Root: 293.4672043005828

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 nXk 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A299661

a(n) = A050314(2n+1,1): column 1 of triangle. A50316

Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A299656

Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A299659

a(n) = A004061(n) - 1. A86123