Properties of the Number 87861

Eighty-Seven Thousand Eight Hundred Sixty-One

Basics

Value: 87860 → 87861 → 87862

Parity: odd

Prime: No

Previous Prime: 87853

Next Prime: 87869

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 29287

Divisors: 1, 3, 29287, 87861

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011100110101

Octal: 253465

Duodecimal: 42A19

Hexadecimal: 15735

Square: 7719555321

Square Root: 296.4135624427465

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

Number of (4+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction. A250759

Primes of the form 16·m² + 81, m=1,2,3,... A87861

Pascal's reversal triangle, read by rows. A123264