Properties of the Number -2744210

Seven Hundred Forty-Four Thousand Two Hundred Ten

Basics

Value: -2744211 → -2744210 → -2744209

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 7 × 197 × 199

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 197, 199

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1010011101111110010010

Octal: -12357622

Duodecimal: -B04102

Hexadecimal: -29df92

Square: 7530688524100

Square Root: 1656.5657246242904

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

Expansion of 1/(1 + 2·x - x²). A77985

a(n) = -2·a(n-1) + a(n-2) for n > 2, with a(0) = a(1) = 1, a(2) = 0. A215936

Expansion of 2+(1-2·x)/(-1+2·x+x²). A176981

Pell numbers: a(0) = 0, a(1) = 1; for n > 1, a(n) = 2·a(n-1) + a(n-2). A129

a(n) = 6·a(n-1) - a(n-2) for n > 1, a(0)=0 and a(1)=2. A1542

Number of 2 X n binary arrays with a path of adjacent 1's from upper left corner to anywhere in right hand column. A69306

Interleave denominators (A000129) and numerators (A001333) of convergents to sqrt(2). A2965

a(1) = 1, a(2) = 2; a(2·k) = 2·a(2·k-1) - a(2·k-2), a(2·k+1) = 4·a(2·k) - a(2·k-1). A84068

a(n) = 2·a(n-1) + a(n-2) for n > 2, a(0) = a(1) = 1, a(2) = 2. A215928

Square roots of [A055872/8]: Their square written in base 8, with some digit appended, is again a square. A204512