Properties of the Number 1141

One Thousand One Hundred Forty-One

Basics

Value: 1140 → 1141 → 1142

Parity: odd

Prime: No

Previous Prime: 1129

Next Prime: 1151

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 7 × 163

Divisors: 1, 7, 163, 1141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110101

Octal: 2165

Duodecimal: 7B1

Hexadecimal: 475

Square: 1301881

Square Root: 33.77869150810907

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

Hex (or centered hexagonal) numbers: 3·n*(n+1)+1 (crystal ball sequence for hexagonal lattice). A3215

Generalized 13-gonal numbers: m*(11·m-9)/2 with m = 0, 1, -1, 2, -2, 3, -3, ... A195313

"Three-quarter squares": a(n) = n² - A002620(n). A77043

Expansion of ∏_m>=1 (1+q^m)^m². A27998

a(n) = least k such that the remainder when 11^k is divided by k is n. A127819

Numbers whose sum of digits is 7. A52221

a(n) = n*(n² - 6·n + 11)/6. A50407

Number of lattice points inside the ball x² + y² + z² <= n. A117609

a(0) = 0, a(1) = 1; a(n) = max { 4·a(k) + a(n-k) | 1 <= k <= n/2 }, for n > 1. A116520

Number of ordered pairs (i,j), 0 <= i,j < n, for which (i & j) is nonzero, where & is the bitwise AND operator. A80572