Properties of the Number 38665

Thirty-Eight Thousand Six Hundred Sixty-Five

Basics

Value: 38664 → 38665 → 38666

Parity: odd

Prime: No

Previous Prime: 38653

Next Prime: 38669

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 11 × 19 × 37

Divisors: 1, 5, 11, 19, 37, 55, 95, 185, 209, 407

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001011100001001

Octal: 113411

Duodecimal: 1A461

Hexadecimal: 9709

Square: 1494982225

Square Root: 196.6341781074694

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+1)*(2·n+1)*(3·n+1). A11199

Numbers with exactly one arithmetic progression of four successive divisors (not necessarily consecutive). A94530

Column 3 of array in A133713. A133718

Column 4 of triangle in A133721. A133723

Column 5 of triangle in A133721. A133724

60-gonal (hexacontagonal) numbers: a(n) = n(29n - 28). A249911

a(n) is the numerator of the squared circumradius of a cyclic quadrilateral with sides n, n+1, n+2, n+3. A351696

a(n) = (6·n + 1)*(12·n + 1)*(18·n + 1). A382809

a(0) = 1, a(n) = 23·n² + 2 for n>0. A10013

Triangle read by rows: T(n,k) = number of peakless Motzkin paths of length n having k (1,1) steps starting at level zero (can be easily expressed also in RNA secondary structure terminology). A89736