Properties of the Number -408105

Four Hundred Eight Thousand One Hundred Five

Basics

Value: -408106 → -408105 → -408104

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 3023

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 3023, 9069

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100011101000101001

Octal: -1435051

Duodecimal: -178209

Hexadecimal: -63a29

Square: 166549691025

Square Root: 638.8309635576535

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) = ∑_k=0..n binomial(n,k)*binomial(2·k,k). A26375

T(n,k)=Number of nXk 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2. A276299

Riordan array (1/sqrt(1-6x+5x²),(1-3x-sqrt(1-6x+5x²))/(2x)). A110165

Number of branching factorizations of the least integer of each prime signature (A025487). A366884

a(n) = T(n,[ n/2 ]), where T is the array in A026374. A26380

Riordan array (1/sqrt(1-6x+5x²),x/(1-6x+5x²)). A111965

Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2. A276297

Number of 5Xn 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2. A276302

Triangle read by rows: T(n,k) (0<=k<=floor(n/2)) is the number of Delannoy paths of length n, having k ED's. A110221