Properties of the Number 19497

Nineteen Thousand Four Hundred Ninety-Seven

Basics

Value: 19496 → 19497 → 19498

Parity: odd

Prime: No

Previous Prime: 19489

Next Prime: 19501

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 67 × 97

Divisors: 1, 3, 67, 97, 201, 291, 6499, 19497

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100110000101001

Octal: 46051

Duodecimal: B349

Hexadecimal: 4c29

Square: 380133009

Square Root: 139.63165830140383

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=1..n -μ(k+1) * a(n-k), with a(0)=1. A73776

Numbers m such that m·reversal(m) contains every decimal digit exactly once. A178929

Numbers k such that k!4 + 2⁹ is prime, where k!4 = k!!!! is the quadruple factorial number (A007662). A291350

Number of nX7 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302679

G.f. satisfies: A(x) = x + x·Sum{n>=0} xⁿ/n! * dⁿ/dxⁿ A(x)ⁿ⁺¹. A187820

Number of ternary search trees on n keys. A19497

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302680