Properties of the Number 81974

Eighty-One Thousand Nine Hundred Seventy-Four

Basics

Value: 81973 → 81974 → 81975

Parity: even

Prime: No

Previous Prime: 81973

Next Prime: 82003

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 17 × 2411

Divisors: 1, 2, 17, 34, 2411, 4822, 40987, 81974

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000000110110

Octal: 240066

Duodecimal: 3B532

Hexadecimal: 14036

Square: 6719736676

Square Root: 286.31101969711193

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) = 3·a(n-3) + a(n-2), a(0)=3, a(1)=0, a(2)=2. A231101

a(1) = 1 and smallest number not occurring earlier such that the product of two neighboring terms is a distinct triangular number, where "distinct" means that a(n)*a(n+1) may not equal the product of any two previous consecutive terms. A81974