Properties of the Number 66927

Sixty-Six Thousand Nine Hundred Twenty-Seven

Basics

Value: 66926 → 66927 → 66928

Parity: odd

Prime: No

Previous Prime: 66923

Next Prime: 66931

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 3187

Divisors: 1, 3, 7, 21, 3187, 9561, 22309, 66927

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010101101111

Octal: 202557

Duodecimal: 32893

Hexadecimal: 1056f

Square: 4479223329

Square Root: 258.70253187783067

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 magic labelings of the prism graph I X C₅ with magic sum n. A244497

Positive integer values of n such that 6·n²-5 is a square. A80806

a(1)=1, a(n) = a(n-1) + sum of odd numbers which are among the first (n-1) terms of the sequence. A131093

a(n)*a(n+3) - a(n+1)*a(n+2) = 5, given a(0)=a(1)=1, a(2)=2. A80873

a(n) = ∑_k=0..n (-1)^k*floor((1 + sqrt(2))^k). A277789

a(n) = ∑_k=0..n ceiling((1 + sqrt(2))^k). A279101

a(0)=a(1)=1, a(2)=4, a(3)=7, a(n+4) = 10·a(n+2) - a(n). A152450

Least k such that between p and 2p, for all primes > 3, there is always a number that is twice a square, i.e.; a k such that p < 2k² < 2p. A66927