Properties of the Number 86500

Eighty-Six Thousand Five Hundred

Basics

Value: 86499 → 86500 → 86501

Parity: even

Prime: No

Previous Prime: 86491

Next Prime: 86501

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 ³ × 173

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101000111100100

Octal: 250744

Duodecimal: 42084

Hexadecimal: 151e4

Square: 7482250000

Square Root: 294.10882339705483

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 ways to write n as an ordered sum of eight positive Fibonacci numbers (with a single type of 1). A357716

Number of terms in polynomial expression for determinant of generic circulant matrix of order n. A84575

Number of (5+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically. A258558

Group the natural numbers such that the n-th group sum is divisible by the n-th triangular number: (1), (2, 3, 4), (5, 6, 7), (8, 9, 10, 11, 12), (13, 14, 15, 16, 17), (18, 19, 20, 21, 22, 23, 24), ... Sequence contains the group sum. A86500

a(n) is the smallest m>=0 such that ((5n+1)*6^m-1)/5 is prime; or -1 if no such value exists. A217377

Number of R&E Family matchings on n edges. A256337