Properties of the Number 91631

Ninety-One Thousand Six Hundred Thirty-One

Basics

Value: 91630 → 91631 → 91632

Parity: odd

Prime: Yes

Previous Prime: 91621

Next Prime: 91639

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 91631

Divisors: 1, 91631

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110010111101111

Octal: 262757

Duodecimal: 4503B

Hexadecimal: 165ef

Square: 8396240161

Square Root: 302.70612811768444

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

Denominators of continued fraction convergents to sqrt(209). A41389

Denominators of continued fraction convergents to sqrt(836). A42615

Prime numbers p such that primepi(p) + p is a square. A104269

Next prime associated with A091628. A91631

Number of ways to write n as p·q-(p+q) with primes p <= q. A157187

Number of length 4+2 0..n arrays with the sum of the maximum minus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero. A252180

a(n) = sqrt(k·A001414(k)+1) for k in A343141. A343142

a(n) is the least k for which x(k) > ∑_j=1..k 1/j, where x(k) is the Newton iterate (starting from x(1)=1) for exp(-P(n,x)) and P(n,x) is the n-th Maclaurin polynomial for exp(x). A348126