Properties of the Number 16731

Sixteen Thousand Seven Hundred Thirty-One

Basics

Value: 16730 → 16731 → 16732

Parity: odd

Prime: No

Previous Prime: 16729

Next Prime: 16741

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 × 13 ²

Divisors: 1, 3, 9, 11, 13, 33, 39, 99, 117, 143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000101011011

Octal: 40533

Duodecimal: 9823

Hexadecimal: 415b

Square: 279926361

Square Root: 129.3483668238606

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

Integers k such that 10^k+49 is prime. A108054

a(n) = 6·a(n-1) - a(n-2) - 2 with a(0) = 1, a(1) = 3. A11900

Determinant of the n X n matrix with (i,j)-entry equal to 1 or 0 according as 2*(i + j) - 1 and 2*(i + j) + 1 are twin primes or not. A228615

T(n,k) = 1/12 the number of (n+1) X (k+1) 0..5 arrays with every 2 X 2 subblock strictly increasing clockwise or counterclockwise with one decrease, and at least two adjacent blocks having the same increasing direction. A183729

Expansion of 1/sqrt(1 -2·x -3·x² -4·x³ +4·x⁴). A108488

a(n) = (7·n⁴ + 5·n²)/12. A185505

Partial sums of A051879. A50405

Pseudo-random numbers: Davenport's generator for 32-bit integers. A84277

Expansion of (1-3·x) / (1-5·x-5·x²+x³). A108475

Expansion of (1-x)/((1-x)² - x²*(1+x)²). A116404