Properties of the Number 66988

Sixty-Six Thousand Nine Hundred Eighty-Eight

Basics

Value: 66987 → 66988 → 66989

Parity: even

Prime: No

Previous Prime: 66977

Next Prime: 67003

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 16747

Divisors: 1, 2, 4, 16747, 33494, 66988

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010110101100

Octal: 202654

Duodecimal: 32924

Hexadecimal: 105ac

Square: 4487392144

Square Root: 258.8204010506127

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 classes of endofunctions of [n] under vertical translation mod n, rotation, complement to n+1 and reversal. A275556

Positive numbers whose square starts and ends with exactly 44, and no 444. A348831

a(n) = ∏_i=2..n φ(i)/bigomega(i). A66988