Properties of the Number 86670

Eighty-Six Thousand Six Hundred Seventy

Basics

Value: 86669 → 86670 → 86671

Parity: even

Prime: No

Previous Prime: 86629

Next Prime: 86677

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 5 × 107

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001010001110

Octal: 251216

Duodecimal: 421A6

Hexadecimal: 1528e

Square: 7511688900

Square Root: 294.3976902083303

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

Triangle read by rows: T(n,k) is the number of ternary trees with n edges and having k vertices of outdegree 3 (n >= 0, k >= 0). A120983

a(n) = round(n*φ¹⁸), where φ is the golden ratio, A001622. A4953

a(n) = ceiling(n*φ¹⁸), where φ is the golden ratio, A001622. A4973

Sum of floor(d/2) where d is a divisor of n. A86670