Properties of the Number 74540

Seventy-Four Thousand Five Hundred Forty

Basics

Value: 74539 → 74540 → 74541

Parity: even

Prime: No

Previous Prime: 74531

Next Prime: 74551

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 3727

Divisors: 1, 2, 4, 5, 10, 20, 3727, 7454, 14908, 18635

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010001100101100

Octal: 221454

Duodecimal: 37178

Hexadecimal: 1232c

Square: 5556211600

Square Root: 273.02014577682723

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 cubefree words of length n on two letters. A28445

Number of length 6+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four. A249662

Numbers k such that (14·10^k + 79)/3 is prime. A295668

T(n,k)=Number of length n+4 0..k arrays with every five consecutive terms having four times some element equal to the sum of the remaining four. A249656

Expansion of g.f. A(x) satisfying A(x) = 1 + x*(A(x)² - A(-x)²)/2 + x*(A(x)⁴ + A(-x)⁴)/2. A368628

a(n) = 2ⁿ + 5ⁿ + 9ⁿ. A74540