Properties of the Number 39812

Thirty-Nine Thousand Eight Hundred Twelve

Basics

Value: 39811 → 39812 → 39813

Parity: even

Prime: No

Previous Prime: 39799

Next Prime: 39821

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 37 × 269

Divisors: 1, 2, 4, 37, 74, 148, 269, 538, 1076, 9953

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101110000100

Octal: 115604

Duodecimal: 1B058

Hexadecimal: 9b84

Square: 1584995344

Square Root: 199.52944644838766

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: number of permutation trees of power n and height <= k + 1. A179455

a(n) = prime(n)² + prime(n+1). A352851

a(0) = 1, a(n) = result of eliminating the digit 7 from the sum of all previous terms for n>=1. A370254

Number of n X 3 0..1 arrays with no element unequal to a strict majority of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280228

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 3, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4. A293058

Triangle read by rows: matrix 4th power of the Stirling2 triangle A008277. A39812

Square array read by ascending antidiagonals, Bell numbers iterated by the Bell transform. A265312