Properties of the Number 86681

Eighty-Six Thousand Six Hundred Eighty-One

Basics

Value: 86680 → 86681 → 86682

Parity: odd

Prime: No

Previous Prime: 86677

Next Prime: 86689

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 ² × 29 × 61

Divisors: 1, 7, 29, 49, 61, 203, 427, 1421, 1769, 2989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001010011001

Octal: 251231

Duodecimal: 421B5

Hexadecimal: 15299

Square: 7513595761

Square Root: 294.4163718273833

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

Expansion of ∏_k>=1 1/(1-x^k+4)^k. A263360

Coefficient of the irreducible character of S_m indexed by (m-2n+2,2n-2) in the n-th Kronecker power of the representation indexed by (m-2,2). A90809

Number of primes < 8ⁿ. A86681