Properties of the Number -420801

Four Hundred Twenty Thousand Eight Hundred One

Basics

Value: -420802 → -420801 → -420800

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 × 37 × 223

Divisors: 1, 3, 17, 37, 51, 111, 223, 629, 669, 1887

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1100110101111000001

Octal: -1465701

Duodecimal: -183629

Hexadecimal: -66bc1

Square: 177073481601

Square Root: 648.6917603916362

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

Number of n X 4 0..1 arrays with every element equal to 1, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A299524

a(n) = ∑_k=0..n binomial(n,k)²*binomial(n-k,k)²*(-16)^k. A179537