Properties of the Number -416020

Four Hundred Sixteen Thousand Twenty

Basics

Value: -416021 → -416020 → -416019

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 11 × 31 × 61

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 31, 44

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1100101100100010100

Octal: -1454424

Duodecimal: -180904

Hexadecimal: -65914

Square: 173072640400

Square Root: 644.9961240193618

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) = floor(c·r*a(n-1)) - floor(d·s*a(n-2)), where r = (1+sqrt(5))/2, s = r/(r-1), c = 1, d = 1, a(0) = 1, a(1) = 1. A275858

Expansion of g.f. (1+x)²/((1 + x + x²)*(1 + x - x²)). A106511

Denominators of continued fraction convergents to sqrt(5). A1076

p-INVERT of the positive integers, where p(S) = 1 - S². A290890

a(n) = floor(Fibonacci(n)/2). A4695

a(n) = ∑_{k=0..floor(n/4)} binomial(n-2k,2k). A5252

A Fibonacci convolution. A94686

a(n) = C(n-1,1) + C(n-3,3) + ... + C(n-2·m-1,2·m+1), where m = floor((n-2)/4). A24490

a(0) = 0, a(1) = 4, then a(n) = 18·a(n-1) - a(n-2). A60645

Numerator of x(n), where x(n) = x(n-1) + x(n-2) with x(0)=0, x(1)=1/2. A167808