Properties of the Number 7141

Seven Thousand One Hundred Forty-One

Basics

Value: 7140 → 7141 → 7142

Parity: odd

Prime: No

Previous Prime: 7129

Next Prime: 7151

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 37 × 193

Divisors: 1, 37, 193, 7141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101111100101

Octal: 15745

Duodecimal: 4171

Hexadecimal: 1be5

Square: 50993881

Square Root: 84.50443775329198

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

Centered 12-gonal numbers, or centered dodecagonal numbers: numbers of the form 6·k*(k-1) + 1. A3154

a(n) = 4·n² - 6·n + 3. A54569

a(n) = n*(n² - 6·n + 11)/6. A50407

a(n) = 9·n² + 3·n + 1. A82040

Numerator of -∑_k=1..n (-1)^k / prime(k). A24530

A051838 gives numbers m such that the sum of first m primes divides the product of the first m primes. This sequence gives corresponding values of the sum of first m primes. A140763

a(n) = (9·n² - 3·n + 2)/2. A80855

Numbers k such that k, k+2, k+4, k+6, k+8 are semiprimes. A92127

Octanacci numbers. A123526

a(n) = (3 + 2·n + 6·n² + 4·n³)/3. A166464