Properties of the Number 70646

Seventy Thousand Six Hundred Forty-Six

Basics

Value: 70645 → 70646 → 70647

Parity: even

Prime: No

Previous Prime: 70639

Next Prime: 70657

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 35323

Divisors: 1, 2, 35323, 70646

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001001111110110

Octal: 211766

Duodecimal: 34A72

Hexadecimal: 113f6

Square: 4990857316

Square Root: 265.7931526582278

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

a(n) = ∑_{k=0..floor(n/4)} binomial(n-3·k,k) * Catalan(n-3·k). A360272

a(0)=1; a(n) = sigma₁(n) + sigma₂(n) + sigma₃(n). A92347

Number of 0..n arrays x(0..4) of 5 elements with zero 4th difference. A200156

Number of distinct values of the sum of 5 products of three 0..n integers. A225262

Least positive integer k such that 1 + 1/2 + ... + 1/k > n/φ, where φ = golden ratio = (1+sqrt(5))/2. A226160

a(n) = n⁶ mod 23. A70646