Properties of the Number 9661

Nine Thousand Six Hundred Sixty-One

Basics

Value: 9660 → 9661 → 9662

Parity: odd

Prime: Yes

Previous Prime: 9649

Next Prime: 9677

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 9661

Divisors: 1, 9661

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010110111101

Octal: 22675

Duodecimal: 5711

Hexadecimal: 25bd

Square: 93334921

Square Root: 98.29038610159185

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: Yes

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes of the form j² + (j+1)². A27862

a(n) = 8·n² - 4·n + 1. A80856

a(n) = a(n-1) + a(n-8), with a(i) = 1 for i = 0..7. A5710

Primes of the form 210n + 1. A73102

Prime hypotenuses of Pythagorean triangles with a prime leg. A67756

Primes dividing nonzero terms in A003095: the iterates of x² + 1 starting at 0. A247981

Lower prime of a pair of consecutive primes having a difference of 16. A31934

Primes p whose period of reciprocal equals (p-1)/7. A56212

a(n) = (prime(n)² + 1)/2. A66885

Mother primes of order 10. A136069