Properties of the Number 71404

Seventy-One Thousand Four Hundred Four

Basics

Value: 71403 → 71404 → 71405

Parity: even

Prime: No

Previous Prime: 71399

Next Prime: 71411

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 17851

Divisors: 1, 2, 4, 17851, 35702, 71404

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011011101100

Octal: 213354

Duodecimal: 353A4

Hexadecimal: 116ec

Square: 5098531216

Square Root: 267.215269024807

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

Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = 9·x + 2. A257619

a(n) = ∑_k=1..n (-k)^floor(n/k - 1). A345037

Which nonsquarefree number is a square number? a(n)-th nonsquarefree number equals n², the n-th square. A71404