Properties of the Number 71149

Seventy-One Thousand One Hundred Forty-Nine

Basics

Value: 71148 → 71149 → 71150

Parity: odd

Prime: No

Previous Prime: 71147

Next Prime: 71153

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 13 ² × 421

Divisors: 1, 13, 169, 421, 5473, 71149

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: 10001010111101101

Octal: 212755

Duodecimal: 35211

Hexadecimal: 115ed

Square: 5062180201

Square Root: 266.7376988728815

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

a(n) = Fibonacci(n)*Fibonacci(3n)/2. A85695

a(n) = (n + 1)²*(5·n² + 10·n + 2)/2. A269237

Strong pseudoprimes to base 70. A20296

Numbers n such that the sum of the first n odd primes (A071148) is prime; analogous to A013916. A71149