Properties of the Number 91007

Ninety-One Thousand Seven

Basics

Value: 91006 → 91007 → 91008

Parity: odd

Prime: No

Previous Prime: 90997

Next Prime: 91009

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 × 13001

Divisors: 1, 7, 13001, 91007

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001101111111

Octal: 261577

Duodecimal: 447BB

Hexadecimal: 1637f

Square: 8282274049

Square Root: 301.6736647438752

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

Triangle read by rows: T(n,k) is the number of regions between the free polyominoes, with n cells and length k, and their bounding boxes, n >= 1, k >= 1. A380284

Number of binary [ n,4 ] codes of dimension <= 4 without zero columns. A34338

a(n) = the denominator of the continued fraction [[n/1];[n/2],[n/3],..,[n/n]], where [x] is floor(x). A128600

Decimal expansion of ∑_n>=1 arccot(n²). A91007