Properties of the Number 67730

Sixty-Seven Thousand Seven Hundred Thirty

Basics

Value: 67729 → 67730 → 67731

Parity: even

Prime: No

Previous Prime: 67723

Next Prime: 67733

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 13 × 521

Divisors: 1, 2, 5, 10, 13, 26, 65, 130, 521, 1042

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000100010010010

Octal: 204222

Duodecimal: 33242

Hexadecimal: 10892

Square: 4587352900

Square Root: 260.2498799231231

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) = 4394·n + 1820. A156636

Numbers k with Goldbach partitions (p,q) and (r,s) such that k | (p·q -1) and k | (r·s +1). A336584

Pisot sequence T(2,9), a(n) = floor(a(n-1)²/a(n-2)). A20728

Triangle read by rows: T(n,k) is the number of set partitions of {1..3n} into n sets of 3 with k disjoint strings of adjacent sets, each being a contiguous set of elements. A334060

Numbers n such that σ(n-1) + σ(n+1) = σ(2n). A67730

Gaussian binomial coefficient [ n,4 ] for q = -5. A15291