Properties of the Number 68428

Sixty-Eight Thousand Four Hundred Twenty-Eight

Basics

Value: 68427 → 68428 → 68429

Parity: even

Prime: No

Previous Prime: 68399

Next Prime: 68437

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 17107

Divisors: 1, 2, 4, 17107, 34214, 68428

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101101001100

Octal: 205514

Duodecimal: 33724

Hexadecimal: 10b4c

Square: 4682391184

Square Root: 261.5874614732136

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

G.f.: exp( ∑_n>=1 A005063(n)*xⁿ/n ), where A005063(n) = sum of squares of primes dividing n. A219224

Coefficients of 1/(∑_k>=0 round((k+1)*r)(-x)^k), where r = sqrt(2). A289912

Expansion of ζ(3) in base 2. A68428

Elliptic net associated to y² + y = x³ + x² - 2·x, based on the non-torsion generator points P = [0, 0] and Q = [1, 0]. A374833