Properties of the Number 77128

Seventy-Seven Thousand One Hundred Twenty-Eight

Basics

Value: 77127 → 77128 → 77129

Parity: even

Prime: No

Previous Prime: 77101

Next Prime: 77137

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 31 × 311

Divisors: 1, 2, 4, 8, 31, 62, 124, 248, 311, 622

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010110101001000

Octal: 226510

Duodecimal: 38774

Hexadecimal: 12d48

Square: 5948728384

Square Root: 277.71928272988174

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 nXk 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A305954

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A317215

Number of nX3 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A305949

Smallest number greater than the previous term which is relatively prime to each of the group of the next n numbers. A77128