Properties of the Number 66028

Sixty-Six Thousand Twenty-Eight

Basics

Value: 66027 → 66028 → 66029

Parity: even

Prime: No

Previous Prime: 65993

Next Prime: 66029

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 17 × 971

Divisors: 1, 2, 4, 17, 34, 68, 971, 1942, 3884, 16507

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10000000111101100

Octal: 200754

Duodecimal: 32264

Hexadecimal: 101ec

Square: 4359696784

Square Root: 256.9591407208547

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 nX7 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 3. A239360

Wilson quotients: ((p-1)! + 1)/p where p is the n-th prime. A7619

Characteristic function of {1} union {primes}: 1 if n is 1 or a prime, else 0. A80339

Decimal expansion of Mills's constant, assuming the Riemann Hypothesis is true. A51021

Poincaré series for invariant polynomial functions on the space of binary forms of degree 16. A293941

Primes of the form x² + y² + 1, x>0, y>0. A79544

Largest prime which can be written as a sum of distinct primes <= prime(n). A66028

2²^2^ ... 2^w (with n 2's), where w = 1.92878... = A086238. A16104