Properties of the Number 19944

Nineteen Thousand Nine Hundred Forty-Four

Basics

Value: 19943 → 19944 → 19945

Parity: even

Prime: No

Previous Prime: 19937

Next Prime: 19949

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 277

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110111101000

Octal: 46750

Duodecimal: B660

Hexadecimal: 4de8

Square: 397763136

Square Root: 141.22322755127783

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

Numbers that are the sum of 9 nonzero 8th powers. A3387

Numbers k for which (7+k!)/7 is prime. A139065

a(1) = 1, a(n+1) is the sum of a(n) and floor( arithmetic mean of a(1) ... a(n) ). A65094

Record (maximal) gaps between prime triples (p, p+4, p+6). A201596

McKay-Thompson series of class 6E for Monster (and, apart from signs, of class 12B). A7258

McKay-Thompson series of class 6E for the Monster group with a(0) = 3. A105559

McKay-Thompson series of class 6E for the Monster group with a(0) = 4. A128633

McKay-Thompson series of class 6E for the Monster group with a(0) = -5. A128632

E.g.f. satisfies A(x) = 1 - x·A(x)²*log(1 - x·A(x)²). A371229

McKay-Thompson series of class 12B for the Monster group with a(0) = 5. A187146