Properties of the Number 66202

Sixty-Six Thousand Two Hundred Two

Basics

Value: 66201 → 66202 → 66203

Parity: even

Prime: No

Previous Prime: 66191

Next Prime: 66221

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 79 × 419

Divisors: 1, 2, 79, 158, 419, 838, 33101, 66202

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001010011010

Octal: 201232

Duodecimal: 3238A

Hexadecimal: 1029a

Square: 4382704804

Square Root: 257.2974931863892

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

Numbers n such that σ(2*φ(n)) = 2*σ(n). A137733

Array T(n,k) (n>=1, k>=1) read by antidiagonals: T(n,n) = 1 for all n; fill in array above diagonal by symmetry; for row n, starting at diagonal T(n,n)=1, for k > n, T(n,k) = T(n,k-1)-(k-1) if this is positive and has not already appeared in this row, otherwise T(n,k) = T(n,k-1)+(k-1). A66202