Properties of the Number 87161

Eighty-Seven Thousand One Hundred Sixty-One

Basics

Value: 87160 → 87161 → 87162

Parity: odd

Prime: No

Previous Prime: 87151

Next Prime: 87179

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 43 × 2027

Divisors: 1, 43, 2027, 87161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010001111001

Octal: 252171

Duodecimal: 42535

Hexadecimal: 15479

Square: 7597039921

Square Root: 295.2304184869845

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 partitions of n into distinct parts with boundary size 9. A227566

Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,15}) exceeds the largest prime factor of product(n+k, {k,0,15}). A209839

Number of length n+3 0..2 arrays with some pair in every consecutive four terms totalling exactly 2. A245945

T(n,k)=Number of length n+3 0..k arrays with some pair in every consecutive four terms totalling exactly k. A245950

Records in A087159, i.e., A087159(a(n)) = n, and satisfies the recurrence a(n+3) = 5·a(n+2) - 6·a(n+1) + 2·a(n) with a(1) = 1, a(2) = 2, and a(3) = 4. A87161