Properties of the Number 8147

Eight Thousand One Hundred Forty-Seven

Basics

Value: 8146 → 8147 → 8148

Parity: odd

Prime: Yes

Previous Prime: 8123

Next Prime: 8161

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 8147

Divisors: 1, 8147

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111111010011

Octal: 17723

Duodecimal: 486B

Hexadecimal: 1fd3

Square: 66373609

Square Root: 90.26073343375845

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

Primes with first digit 8. A45714

Primes such that the sum of the predecessor and successor primes is divisible by 23. A112847

Smallest prime p==3 (mod 8) such that Q(sqrt(-p)) has class number 2n+1. A2148

a(n) = 2ⁿ - 45 with n>5, a(5)=1. A36564

a(1) = 7; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74343

a(n) = prime(2ⁿ - 1). A51438

Number of n X 2 0..1 arrays with every element unequal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero. A303802

Primes of the form 2·p+1 where p is prime and p+1 is squarefree. A153209

Non-palindromic balanced primes. A256076

Least positive integer k such that prime(k·n)+2 = prime(i·n)*prime(j·n) for some 0 < i < j. A257926