Properties of the Number -100890

One Hundred Thousand Eight Hundred Ninety

Basics

Value: -100891 → -100890 → -100889

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 19 × 59

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -11000101000011010

Octal: -305032

Duodecimal: -4A476

Hexadecimal: -18a1a

Square: 10178792100

Square Root: 317.6318623815942

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

Amicable triples: numbers such that σ(x) = σ(y) = σ(z) = x+y+z, x<y<z. We order these triples according to the common value of σ. Sequence gives z numbers. A125492

Numbers k such that k and 9·k are anagrams. A23093

Smallest number requiring n steps to reach a palindrome under the "add a digit" process described in A241173. A241174

Numbers whose set of base 7 digits is {0,6}. A97253

Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039). A341604

[ (3rd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+2 positive integers congruent to 1 mod 4}. A24386