Properties of the Number 91139

Ninety-One Thousand One Hundred Thirty-Nine

Basics

Value: 91138 → 91139 → 91140

Parity: odd

Prime: Yes

Previous Prime: 91129

Next Prime: 91141

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 91139

Divisors: 1, 91139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110010000000011

Octal: 262003

Duodecimal: 448AB

Hexadecimal: 16403

Square: 8306317321

Square Root: 301.89236492498446

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

a(1) = 11; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n). A87391

a(1) = 3, then a(n) = least prime, not already present, beginning with the digit reversal of a(n-1). A90543

Fibonacci sequence beginning 4, 11. A22131

Number of nondecreasing -5..5 vectors of length n whose dot product with some nondecreasing -5..5 vector equals n. A226408

T(n,k)=Number of nondecreasing -k..k vectors of length n whose dot product with some nondecreasing -k..k vector equals n. A226410

Number of nX4 0..1 arrays with every element unequal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A317892

Row sums of triangle A091063. A91139