Properties of the Number -7271

Two Hundred Seventy-One

Basics

Value: -7272 → -7271 → -7270

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 11 × 661

Divisors: 1, 11, 661, 7271

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1110001100111

Octal: -16147

Duodecimal: -425B

Hexadecimal: -1c67

Square: 52867441

Square Root: 85.27015890685323

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-x)^-1/(1-x+2·x²-2·x³). A77874

Positive integers n such that 2ⁿ == 2¹¹ (mod n). A15935

Least positive power of 3 having exactly n consecutive 1's in its decimal representation. A131552

Odd integers n such that 2ⁿ == 2¹¹ (mod n). A276971

Number of rhombi on an n X n grid (or geoboard). A189418

Sum of terms of n-th row of A077321. A77324

Number of nX1 0..1 arrays with exactly floor(nX1/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order. A222283

Numbers n such that n and its digit reversal R(n) both are difference of positive cubes. A109879

Gaps of 2 in sequence A038593 (lower terms). A38643

a(n) = n*(n³ - n + 2)/2. A101374