Properties of the Number 74840

Seventy-Four Thousand Eight Hundred Forty

Basics

Value: 74839 → 74840 → 74841

Parity: even

Prime: No

Previous Prime: 74831

Next Prime: 74843

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 5 × 1871

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1871, 3742

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010001011000

Octal: 222130

Duodecimal: 37388

Hexadecimal: 12458

Square: 5601025600

Square Root: 273.5690040922034

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

Number of ways to place 3 nonattacking nightriders on an n X n cylindrical board. A196811

G.f. for Ehrhart quasi-polynomials for hyperplane arrangements of type E₈. A210632

Numerators a(n) of fractions slowly converging to sqrt(2): let a(1) = 0, b(n) = n - a(n); if (a(n) + 1) / b(n) < sqrt(2), then a(n+1) = a(n) + 1, else a(n+1)= a(n). A74840