ℕ atory
Play Now

Properties of the Number 19028

Nineteen Thousand Twenty-Eight

Basics

Value: 19027 → 19028 → 19029

Parity: even

Prime: No

Previous Prime: 19013

Next Prime: 19031

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 2 × 67 × 71

Divisors: 1, 2, 4, 67, 71, 134, 142, 268, 284, 4757

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100101001010100

Octal: 45124

Duodecimal: B018

Hexadecimal: 4a54

Square: 362064784

Square Root: 137.94201680416305

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: T(n,k) is the number of permutations of [n] with k increasing runs of length at least 2. A8971
Number of binary words of length n that contain all sixteen 4-bit words as (possibly overlapping) contiguous subwords. A242257
Triangle of polynomial coefficients related to the o.g.f.s. of the RBS1 polynomials. A160486
Number of permutations of [n] with exactly 3 increasing runs of length at least 2. A507
Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7. A159369
Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)t+u+v) having three, four or five distinct values for every i,j,k<=n. A211570
Number of (n+1) X (7+1) 0..1 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally and vertically. A253158
Molecular topological indices of the path graphs Pn. A121318
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 7. A159207
Triangle of coefficients arising in expansion of n-th derivative of tan(x) + sec(x). A198895