Properties of the Number 38220

Thirty-Eight Thousand Two Hundred Twenty

Basics

Value: 38219 → 38220 → 38221

Parity: even

Prime: No

Previous Prime: 38219

Next Prime: 38231

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 7 ² × 13

Divisors: 1, 2, 3, 4, 5, 6, 7, 10, 12, 13

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001010101001100

Octal: 112514

Duodecimal: 1A150

Hexadecimal: 954c

Square: 1460768400

Square Root: 195.49936061276517

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) = n*(n-1)²*(n-2). A47928

a(n) = ∑_k=0..n (k+1) * A026637(n,k). A26970

T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18. A233997

Smallest number whose set of divisors contains each digit 0-9 at least n times. A59436

a(n) = n*(n+1)*(5·n+7)/6. A162148

T(n,k) is (1/n) times the n-th derivative of the difference between the k-th tetration of x (power tower of order k) and its predecessor at x=1; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A295027

Triangle L, read by rows, equal to the matrix log of triangle A173210. A173220

Triangle read by rows: (1/4) * (A007318³ - A007318^-1) as infinite lower triangular matrices. A131049

Oblong numbers that are the product of two oblong numbers. A188660

Number of subsets of {1,...,n + 1} containing n + 1 and such that all positive differences of distinct elements are distinct. A308251