Properties of the Number 87621

Eighty-Seven Thousand Six Hundred Twenty-One

Basics

Value: 87620 → 87621 → 87622

Parity: odd

Prime: No

Previous Prime: 87613

Next Prime: 87623

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 29207

Divisors: 1, 3, 29207, 87621

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101011001000101

Octal: 253105

Duodecimal: 42859

Hexadecimal: 15645

Square: 7677439641

Square Root: 296.0084458254528

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

T(n,k)=Number of (n+2)X(k+2) nonnegative integer arrays with all values the knight distance from the upper left minus as much as 3, with successive minimum path knight move differences either 0 or +1, and any unreachable value zero. A253342

Number of (n+2)X(1+2) nonnegative integer arrays with all values the knight distance from the upper left minus as much as 3, with successive minimum path knight move differences either 0 or +1, and any unreachable value zero. A253335

Number of (n+2)X(6+2) nonnegative integer arrays with all values the knight distance from the upper left minus as much as 3, with successive minimum path knight move differences either 0 or +1, and any unreachable value zero. A253340

Number of strict integer partitions of n where all parts have neighbors. A356606

(1,1) entry of powers of the orthogonal design shown below. A87621

Middle of three consecutive semiprimes with common prime factor = 3. A131409