Properties of the Number 65898

Sixty-Five Thousand Eight Hundred Ninety-Eight

Basics

Value: 65897 → 65898 → 65899

Parity: even

Prime: No

Previous Prime: 65881

Next Prime: 65899

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 7 × 523

Divisors: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000000101101010

Octal: 200552

Duodecimal: 32176

Hexadecimal: 1016a

Square: 4342546404

Square Root: 256.7060575833769

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

a(n) = smallest number that leads to a new cycle under the base-4 Kaprekar map of A165012. A165029

a(n) = n*(n+1)*(20·n-17)/6. A172117

The Wiener index of the para-polyphenyl chain with n hexagons (see the Dou et al. and the Deng references). A216112

a(n) = floor((xⁿ - (1-x)ⁿ) / (2x-1) +.5) where x = (sqrt(6)+1)/2 (and hence 2x-1 = sqrt(6)). A136424

Which composite number is the product of first n primes (the n-th primorial number)?: a(n) = k such that A002808(k) = A002110(n), or 0 if A002110(n) is not composite. A65898