Properties of the Number -99644

Ninety-Nine Thousand Six Hundred Forty-Four

Basics

Value: -99645 → -99644 → -99643

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 29 × 859

Divisors: 1, 2, 4, 29, 58, 116, 859, 1718, 3436, 24911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -11000010100111100

Octal: -302474

Duodecimal: -497B8

Hexadecimal: -1853c

Square: 9928926736

Square Root: 315.6643787315889

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

Even composite integers m such that U(m)² == 1 (mod m) and V(m) == 3 (mod m), where U(m)=A001906(m) and V(m)=A005248(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=3 and b=1, respectively. A337777

Numbers k such that k divides the (k+1)st Lucas number. A94397

Even composites in A145832 with at least three distinct prime factors. A145916

a(n) = floor( exp(19/21)*n! ). A30841

Suppose you take the ten digits 0..9, arrange them in any order and then either concatenate adjacent ones or separate them with a plus or minus sign, e.g., 98-76+5-4-32+10 or 9-8-765+3041-2. The first expression totals to "1", the second example totals to "2275". This sequence lists the positive integers that cannot be expressed in this way. A108224