Properties of the Number -890109

Eight Hundred Ninety Thousand One Hundred Nine

Basics

Value: -890110 → -890109 → -890108

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁷ × 11 × 37

Divisors: 1, 3, 9, 11, 27, 33, 37, 81, 99, 111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -11011001010011111101

Octal: -3312375

Duodecimal: -36B139

Hexadecimal: -d94fd

Square: 792294031881

Square Root: 943.455881321432

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) = ∏_i=1..n (10ⁱ - 1). A27878

Numbers which can be expressed as the product of numbers made of only nines. A161147

Numbers n with the property that cyclically right-shifting by 2 positions divides n by 9 (leading 0's omitted). A213817

Numbers k such that R(k)/k is of the form (m + 1)/m, where R(k) is the digital reversal of k. A376259