Properties of the Number 16409

Sixteen Thousand Four Hundred Nine

Basics

Value: 16408 → 16409 → 16410

Parity: odd

Prime: No

Previous Prime: 16381

Next Prime: 16411

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 61 × 269

Divisors: 1, 61, 269, 16409

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000000011001

Octal: 40031

Duodecimal: 95B5

Hexadecimal: 4019

Square: 269255281

Square Root: 128.09761902549164

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

Composite and every divisor (except 1) contains the digit 6. A62674

Numbers n such that p(10n) is prime, where p(n) is the number of partitions of n. A114170

Smallest number m such that A114228(m) = n. A114229

The number of vertices formed by straight line segments mutually connecting all vertices of a semicircular polygon defined in A333642. A330913

Number of Barlow packings that repeat after exactly n layers. A11768

a(n) = T(0,n) + T(1,n-1) + ... + T(n,0), array T given by A048472. A48481

a(n) = 2ⁿ⁺¹ + 2·n - 1. A131898

Number of different closest packings of equal spheres for hexagonal crystals having repeat period n. A371991

Numbers k such that A276086(k) is a multiple of A003415(k) and A276087(k) is a multiple of A327859(k). A393071

a(n) = A067076(n) + A000079(n)/2 with A067076(0)=0. A92176