Properties of the Number 68340

Sixty-Eight Thousand Three Hundred Forty

Basics

Value: 68339 → 68340 → 68341

Parity: even

Prime: No

Previous Prime: 68329

Next Prime: 68351

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 17 × 67

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 17

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101011110100

Octal: 205364

Duodecimal: 33670

Hexadecimal: 10af4

Square: 4670355600

Square Root: 261.4192035792321

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 (curved) edges formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius. A371255

Numbers k such that the first 9 decimal digits of the k-th Fibonacci number is 1-9 pandigital. A112516

a(n) = ADP(n) is the total number of aperiodic k-double-palindromes of n, where 2 <= k <= n. A181135

a(n) = ∑_k=1..n μ(k)*k, where μ(k) is the Moebius function. A68340

G.f. A(x) satisfies: coefficient of xⁿ in A(x)^2·n equals A000172(n) = ∑_k=0..n C(n,k)³, the n-th Franel number. A242903