Properties of the Number 868

Eight Hundred Sixty-Eight

Basics

Value: 867 → 868 → 869

Parity: even

Prime: No

Previous Prime: 863

Next Prime: 877

Digit Sum: 22

Digital Root: 4

Palindrome: Yes

Factorization: 2 ² × 7 × 31

Divisors: 1, 2, 4, 7, 14, 28, 31, 62, 124, 217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101100100

Octal: 1544

Duodecimal: 604

Hexadecimal: 364

Square: 753424

Square Root: 29.46183972531247

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

List of totally balanced sequences of 2n binary digits written in base 10. Binary expansion of each term contains n 0's and n 1's and reading from left to right (the most significant to the least significant bit), the number of 0's never exceeds the number of 1's. A14486

Number of partitions of n having an integer median. A325347

a(n) = n*(n+3). A28552

Number of strict integer partitions of n with pairwise indivisible parts. A303362

Coordination sequence for "svh" 3D uniform tiling. A299283

Jordan function J₃(n). A59376

Third spoke of a hexagonal spiral. A56107

Number of integer partitions of n whose differences (with the last part taken to be 0) are distinct. A325324

Irregular triangle read by rows: T(n,k) is the number of binary pattern classes in the (2,n)-rectangular grid with k '1's and (2n-k) '0's: two patterns are in same class if one of them can be obtained by a reflection or 180-degree rotation of the other. A226048

Numbers that are the sum of 4 nonzero 4th powers. A3338