Properties of the Number 98644

Ninety-Eight Thousand Six Hundred Forty-Four

Basics

Value: 98643 → 98644 → 98645

Parity: even

Prime: No

Previous Prime: 98641

Next Prime: 98663

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 7 × 13 × 271

Divisors: 1, 2, 4, 7, 13, 14, 26, 28, 52, 91

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000000101010100

Octal: 300524

Duodecimal: 49104

Hexadecimal: 18154

Square: 9730638736

Square Root: 314.07642382070003

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

Expansion of g.f.: (1-x)/(1 - 3·x - x²). A52924

List of quadruples (r,s,t,u): the matrix M = [[4,12,9][2,5,3][1,2,1]] is raised to successive powers, then (r,s,t,u) are the square roots of M[3,1], M[3,3], M[1,1], M[1,3] respectively. A249579

List of quadruples (r,s,t,u): the matrix M = [[4,12,9][2,5,3][1,2,1]] is raised to successive negative powers, then (r,s,t,u) are the square roots of M[1,3], M[1,1], M[3,3], M[3,1] respectively. A249580

Infinitary Ruth-Aaron numbers: numbers k such that A181894(k) = A181894(k+1). A330999

Unitary Ruth-Aaron numbers: numbers k such that A008475(k) = A008475(k+1). A331000

G.f. satisfies: A(x) = B(x·A(x)), where B(x) is the g.f. of A184509. A184511

x-values in the solution to 13·x² - 12 = y². A199404

Numbers k such that k-3, k-5, k-17, k-257, and k-65537 are all primes. A63825

Base-6 Keith numbers. A188197

Number of reversible string structures with n beads using exactly six different colors. A56330