Properties of the Number 9811

Nine Thousand Eight Hundred Eleven

Basics

Value: 9810 → 9811 → 9812

Parity: odd

Prime: Yes

Previous Prime: 9803

Next Prime: 9817

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 9811

Divisors: 1, 9811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001010011

Octal: 23123

Duodecimal: 5817

Hexadecimal: 2653

Square: 96255721

Square Root: 99.05049217444606

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 of the form 2·n² + 11. A50265

Number of distinct lines through the origin in 3-dimensional cube of side length n. A90025

Primes of the form 2·n² + 34·n + 15. A217494

T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4. A239405

Number of finite sequences of distinct integer partitions with total sum n and weakly decreasing lengths. A358908

Wiener index of a benzenoid consisting of a spiral chain of n hexagons (s=1; see the Gutman et al. reference). A193391

Primes from merging of 4 successive digits in decimal expansion of Catalan's constant. A104918

Primes p for which exactly five bases b with 1 < b < p exist such that p is a base b Wieferich prime. A255208

Primes having only {1, 8, 9} as digits. A385783

Discriminants of imaginary quadratic fields with class number 21 (negated). A46018