Properties of the Number 16526

Sixteen Thousand Five Hundred Twenty-Six

Basics

Value: 16525 → 16526 → 16527

Parity: even

Prime: No

Previous Prime: 16519

Next Prime: 16529

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 8263

Divisors: 1, 2, 8263, 16526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000010001110

Octal: 40216

Duodecimal: 9692

Hexadecimal: 408e

Square: 273108676

Square Root: 128.55349081219072

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(n+1) = a(n) + n·a(n-1) - a(n-2) + a(n-3). A170941

G.f. satisfies: A(x) = B(x·A(x)) where A(x) = ∑_n>=0 a(n)*xⁿ/[n!*(n+1)!/2ⁿ] and B(x) = ∑_n>=0 xⁿ/[n!*(n+1)!/2ⁿ]. A155926

Second crank moment minus second rank moment: M₂(n) - N₂(n) = 2·spt(n). A211982

Number of unlabeled connected simple graphs with n edges rooted at one distinguished vertex. A339039

a(n) = ∑_d∣n d² * (d+1)/2. A278403

Number of 2's in n-th "Kolakoski" string defined in A054349. A111123

Consider the figure made up of a row of n adjacent congruent rectangles, with diagonals of all possible rectangles drawn; a(n) is the number of interior vertices where exactly four lines cross. A336490

Records in A118878. A119903

Number of binary words of length n containing at least one subword 10⁶1 and no subwords 10ⁱ1 with i<6. A143286

Triangle read by rows: distribution of adjacent transpositions in involutions. A217876