Properties of the Number -201881

Two Hundred One Thousand Eight Hundred Eighty-One

Basics

Value: -201882 → -201881 → -201880

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 201881

Divisors: 1, 201881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -110001010010011001

Octal: -612231

Duodecimal: -989B5

Hexadecimal: -31499

Square: 40755938161

Square Root: 449.3116958192831

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

Primes of the form floor(k*(k+1)*π/2), k>=0, where π = 3.1415.. = A000796. A163579

Number of (n+3) X 10 0..2 matrices with each 4 X 4 subblock idempotent. A224727

Number of strings of numbers x(i=1..8) in 0..n with sum i²*x(i)³ equal to 64·n³. A184323