Properties of the Number 40749

Forty Thousand Seven Hundred Forty-Nine

Basics

Value: 40748 → 40749 → 40750

Parity: odd

Prime: No

Previous Prime: 40739

Next Prime: 40751

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 ² × 47

Divisors: 1, 3, 17, 47, 51, 141, 289, 799, 867, 2397

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111100101101

Octal: 117455

Duodecimal: 1B6B9

Hexadecimal: 9f2d

Square: 1660481001

Square Root: 201.8638154796446

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 X k 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,4,3,0,1 for x=0,1,2,3,4. A196786

a(n) = floor(n^log(n)). A61567

Number of (n+1) X 7 0..2 arrays with every 2 X 2 subblock summing to 4. A183629

Number of (n+1) X 8 0..2 arrays with every 2 X 2 subblock summing to 4. A183630

Number of nX5 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,4,3,0,1 for x=0,1,2,3,4. A196783

Number of nX6 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,4,3,0,1 for x=0,1,2,3,4. A196784

Numbers n such that 4·11ⁿ - 1 is prime. A205521

Numbers n such that n | 11ⁿ + 10ⁿ + 9ⁿ + 8ⁿ + 7ⁿ + 6ⁿ. A57258

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to 4. A183632

Continued fraction for sqrt(777). A40749