Properties of the Number 91841

Ninety-One Thousand Eight Hundred Forty-One

Basics

Value: 91840 → 91841 → 91842

Parity: odd

Prime: Yes

Previous Prime: 91837

Next Prime: 91867

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 91841

Divisors: 1, 91841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110011011000001

Octal: 263301

Duodecimal: 45195

Hexadecimal: 166c1

Square: 8434769281

Square Root: 303.0528006800135

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

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements. A250973

Pisot sequence E(4,14): a(n) = floor(a(n-1)²/a(n-2)+1/2) for n>1, a(0)=4, a(1)=14. A10904

Primes of the form ceiling(n^π). A74220

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 645", based on the 5-celled von Neumann neighborhood. A273316

a(n) is the number of strings of length n over the alphabet {a,b,c} with the number of a's divisible by 3, and the number of b's and c's is at most 3. A340169

Records in A091840. A91841