Properties of the Number 66888

Sixty-Six Thousand Eight Hundred Eighty-Eight

Basics

Value: 66887 → 66888 → 66889

Parity: even

Prime: No

Previous Prime: 66883

Next Prime: 66889

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 929

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010101001000

Octal: 202510

Duodecimal: 32860

Hexadecimal: 10548

Square: 4474004544

Square Root: 258.62714474702767

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

None of the digits in k is present in k² or k³. A29790

Numbers with digits 6 and 8 only. A284635

Numbers n such that the smallest exponent k for n and n^k to have common digits is 4. A253602

Natural number transform of Aitken's triangle. A127740

Number of 3-step one or two space at a time rook's tours on an n X n board summed over all starting positions. A187288

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

a(n) = 5 + 4ⁿ + 3*((-i·sqrt(7) - 3)ⁿ + (i·sqrt(7) - 3)ⁿ)/2ⁿ. A370846

Number of primes p between triangular numbers T(n) < p <= T(n+1). A66888

Number of triangular partitions of n of order 6. A276235