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Properties of the Number 66960

Sixty-Six Thousand Nine Hundred Sixty

Basics

Value: 66959 → 66960 → 66961

Parity: even

Prime: No

Previous Prime: 66959

Next Prime: 66973

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 4 × 3 3 × 5 × 31

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010110010000

Octal: 202620

Duodecimal: 32900

Hexadecimal: 10590

Square: 4483641600

Square Root: 258.76630383417387

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 k such that the set of prime divisors of k is equal to the set of prime divisors of σ(k). A27598
a(n) = Z(Sm; σ[1](n), σ[2](n),..., σ[m](n)) where Z(Sm; x1,x2,...,xm) is the cycle index of the symmetric group Sm and σ[k](n) is the sum of k-th powers of divisors of n; m=3. A68020
Numbers k such that A048675(σ(k)) is equal to A048675(2·k). A331751
Number of independent components for a Weyl tensor in n dimensions. A52472
Numbers k for which σ(k)/k - 5/9 is an integer. A218416
Average of amicable pairs (x,y), ordered by the sum x+y given in A259953. A275316
Numbers k such that squarefree part of σ(k) is equal to squarefree part of 2·k. A331752
Numbers k such that the squarefree kernel of σ(k) is equal to the squarefree kernel of 2·k. A332208
Sum of divisors of Motzkin number A001006(n). A152981
Numbers with prime factorization pqr3s^4. A190294