Properties of the Number 19929

Nineteen Thousand Nine Hundred Twenty-Nine

Basics

Value: 19928 → 19929 → 19930

Parity: odd

Prime: No

Previous Prime: 19927

Next Prime: 19937

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 13 × 73

Divisors: 1, 3, 7, 13, 21, 39, 73, 91, 219, 273

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110111011001

Octal: 46731

Duodecimal: B649

Hexadecimal: 4dd9

Square: 397165041

Square Root: 141.17011015083895

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

Palindromic numbers in bases 2 and 9 written in base 10. A259385

Degeneracies of entanglement witness eigenstates for n spin 4 irreducible representations. A272393

Varma's Kosta numbers of semi-standard tableaux: array A(n>=2, k>=0) read by rising antidiagonals. A348210

a(n) = sigma₃(n³)/σ(n³). A77454

G.f.: (1+8·x+22·x²+8·x³+x⁴)/(1-x)⁶. A220892

Triangle read by rows. The incomplete Bell transform of the Catalan numbers. A352366

Expansion of (∏_j>=1 (1-(-x)^j) - 1)²¹ in powers of x. A47646

Integers k such that nextprime(k⁵) - prevprime(k⁵) = 4. A90123

Triangle of coefficients of polynomials v(n,x) jointly generated with A210751; see the Formula section. A210752

Number of (w,x,y) with all terms in {0,...,n} and w<=x+y and x<=y. A212983