Properties of the Number 28866

Twenty-Eight Thousand Eight Hundred Sixty-Six

Basics

Value: 28865 → 28866 → 28867

Parity: even

Prime: No

Previous Prime: 28859

Next Prime: 28867

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 17 × 283

Divisors: 1, 2, 3, 6, 17, 34, 51, 102, 283, 566

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111000011000010

Octal: 70302

Duodecimal: 14856

Hexadecimal: 70c2

Square: 833245956

Square Root: 169.8999705709215

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)=∑_d∣n d·numbpart(d), where numbpart(d)=number of partitions of d, cf. A000041. A61259

a(n) = A000094(n+4) - A006918(n). A84835

a(n) = 25·n² - n. A157514

Partial sums of n + Fibonacci(n+1). A81662

a(n) = 1156·n² - 34. A158729

a(n) = 100·n² - 2·n. A158129

Number of nonnegative integer arrays of length n summing to n without equal adjacent values modulo 4. A221317

Numbers k such that k - sopfr(k) is a positive fourth power. A390141

Number of primitive (period n) step cyclic shifted sequence structures using exactly six different symbols. A56448

Partial sums of repdigit numbers (A010785). A277209