Properties of the Number 66870

Sixty-Six Thousand Eight Hundred Seventy

Basics

Value: 66869 → 66870 → 66871

Parity: even

Prime: No

Previous Prime: 66863

Next Prime: 66877

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 743

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100110110

Octal: 202466

Duodecimal: 32846

Hexadecimal: 10536

Square: 4471596900

Square Root: 258.5923432741194

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

Triangle T(n,t) read by rows: the number of n X n {0,1} matrices with trace t where each row sum and each column sum is 3. A284990

Happy amicable pairs: numbers which belong to an amicable pair in which both terms are happy numbers. A66870