Properties of the Number -25868

Twenty-Five Thousand Eight Hundred Sixty-Eight

Basics

Value: -25869 → -25868 → -25867

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 29 × 223

Divisors: 1, 2, 4, 29, 58, 116, 223, 446, 892, 6467

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010100001100

Octal: -62414

Duodecimal: -12B78

Hexadecimal: -650c

Square: 669153424

Square Root: 160.83531950414374

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

Floor of the expected value of number of trials until exactly two cells are empty in a random distribution of n balls in n cells. A210113

Analog of A059226 in which left diagonal is all 1's. A59274

a(n) = C(n+3,4) + 3·C(n+1,3) + 5·C(n-1,2) + 7·n - 15. A34858

Triangle read by rows: T(n,k) is the number of deco polyominoes of height n such that the bottom of the last column is at level k (n>=1; k>=0). A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column. A121632

a(n) = C(n+3,4) + 3·C(n+1,3) + 5·C(n-1,2) + 7·n - 15 for n >= 3; a(1)=1, a(2)=10. A34859

Positions of records in the continued fraction expansion of log(10). A228345

Number of squarefree words of length n in a 5-ary alphabet, with new values 0..4 introduced in increasing order. A215071