Properties of the Number 16009

Sixteen Thousand Nine

Basics

Value: 16008 → 16009 → 16010

Parity: odd

Prime: No

Previous Prime: 16007

Next Prime: 16033

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 2287

Divisors: 1, 7, 2287, 16009

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111010001001

Octal: 37211

Duodecimal: 9321

Hexadecimal: 3e89

Square: 256288081

Square Root: 126.52667702899653

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 embeddings on the sphere of 2-connected planar graphs with n nodes and k faces, n >= 3, k=2..2·n-4. A342060

a(n) = n³ + 4·n² - 5·n + 1. A241577

Numerators of continued fraction convergents to sqrt(452). A41860

Number of permutations of length n which avoid the patterns 1324, 3421, 4123. A116832

Constant term in the reduction of the n-th Fibonacci polynomial by x³->x²+1. See Comments. A192780

Number of (w,x,y,z) with all terms in {1,...,n} and w²>x²+y²+z². A212094

Number of partitions of the (n+4)-multiset {0,...,0,1,2,3,4} with n 0's into distinct multisets. A346824

Numerators of continued fraction convergents to sqrt(113). A41204

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 76 ones. A31844

Variation of Flavius Josephus's sieve: Start with the natural numbers; at the k-th sieving step, make k passes removing every k-th term of the sequence remaining after the previous sieving step; iterate. A247105