Properties of the Number 66992

Sixty-Six Thousand Nine Hundred Ninety-Two

Basics

Value: 66991 → 66992 → 66993

Parity: even

Prime: No

Previous Prime: 66977

Next Prime: 67003

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 53 × 79

Divisors: 1, 2, 4, 8, 16, 53, 79, 106, 158, 212

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010110110000

Octal: 202660

Duodecimal: 32928

Hexadecimal: 105b0

Square: 4487928064

Square Root: 258.82812830138846

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

Amicable numbers. A63990

Larger of amicable pair. A2046

Amicable pairs. A259180

Numbers k whose deficiency is 64: 2k - σ(k) = 64. A275997

Number T(n,k) of set partitions of [n] such that the maximal absolute difference between the least elements of consecutive blocks equals k; triangle T(n,k), n>=0, 0<=k<=max(n-1,0), read by rows. A287215

Amicable pairs (x < y) ordered by nondecreasing sum (x + y) and then by increasing x. A259933

Larger of amicable pair (x, y) as they are listed in A259933. A260087

Numbers k such that σ(k) = σ(σ(k)-k). A206708

Amicable pairs with the property that both members have the same number of divisors. A328064

Largest members of k-sociable cycles of order r. A183013