Properties of the Number 66147

Sixty-Six Thousand One Hundred Forty-Seven

Basics

Value: 66146 → 66147 → 66148

Parity: odd

Prime: No

Previous Prime: 66137

Next Prime: 66161

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 × 1297

Divisors: 1, 3, 17, 51, 1297, 3891, 22049, 66147

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001001100011

Octal: 201143

Duodecimal: 32343

Hexadecimal: 10263

Square: 4375425609

Square Root: 257.19059080767323

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) = number of Egyptian fractions 1 = 1/x₁ + ... + 1/x_k (for any k), with max{x_i}=n. A92667

Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,3,0. A37697

Numbers k such that all 3 of EulerPhi(k) + 1, d(k) + 1, σ(k) + 1 are simultaneously prime (d(k) denotes the number of divisors of k). A66147