Properties of the Number 81490

Eighty-One Thousand Four Hundred Ninety

Basics

Value: 81489 → 81490 → 81491

Parity: even

Prime: No

Previous Prime: 81463

Next Prime: 81509

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 29 × 281

Divisors: 1, 2, 5, 10, 29, 58, 145, 281, 290, 562

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10011111001010010

Octal: 237122

Duodecimal: 3B1AA

Hexadecimal: 13e52

Square: 6640620100

Square Root: 285.4645336990219

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

Number of Weyl group elements, not containing s₁ or s₂, which contribute nonzero terms to Kostant's weight multiplicity formula when computing the multiplicity of the zero-weight in the adjoint representation for the Lie algebra of type D and rank n. A234576

Leading term of n-th row of A081491. A81490