Properties of the Number -77721

Seventy-Seven Thousand Seven Hundred Twenty-One

Basics

Value: -77722 → -77721 → -77720

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 3701

Divisors: 1, 3, 7, 21, 3701, 11103, 25907, 77721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010111110011001

Octal: -227631

Duodecimal: -38B89

Hexadecimal: -12f99

Square: 6040553841

Square Root: 278.78486329067437

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

Number of nX6 -1,1 arrays such that the sum over i=1..n,j=1..6 of i·x(i,j) is zero and rows are nondecreasing (ways to put 6 thrusters pointing east or west at each of n positions 1..n distance from the hinge of a south-pointing gate without turning the gate). A225307

Number of 8Xn -1,1 arrays such that the sum over i=1..8,j=1..n of i·x(i,j) is zero and rows are nondecreasing (ways to put n thrusters pointing east or west at each of 8 positions 1..n distance from the hinge of a south-pointing gate without turning the gate). A225315