Properties of the Number -66838

Sixty-Six Thousand Eight Hundred Thirty-Eight

Basics

Value: -66839 → -66838 → -66837

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 23 × 1453

Divisors: 1, 2, 23, 46, 1453, 2906, 33419, 66838

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -10000010100010110

Octal: -202426

Duodecimal: -3281A

Hexadecimal: -10516

Square: 4467318244

Square Root: 258.53046242174247

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

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors. A237859

a(n) = ∑_k=1..n (-1)^k+1 * floor(n/k)³. A344721

Number of (n+1)X(3+1) 0..1 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors. A237854

Number of (n+1)X(7+1) 0..1 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors. A237858

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