Properties of the Number 16606

Sixteen Thousand Six Hundred Six

Basics

Value: 16605 → 16606 → 16607

Parity: even

Prime: No

Previous Prime: 16603

Next Prime: 16607

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 19 ² × 23

Divisors: 1, 2, 19, 23, 38, 46, 361, 437, 722, 874

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000011011110

Octal: 40336

Duodecimal: 973A

Hexadecimal: 40de

Square: 275759236

Square Root: 128.8642696793801

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

Number of subsets of {1..n} containing n such that it is possible to choose a different binary index of each element. A370639

a(n) = n²*(5·n-3)/2. A6597

Indices of records in A333549. A333551

a(n) = (1/2) * A027052(n, 2n-1). A27057

Totally multiplicative sequence with a(p) = 9p+1 for prime p. A166667

Dispersion of (2·floor(n·sqrt(3))), by antidiagonals. A191542

E.g.f. A(x) satisfies: A'(x) = A(x·A'(x))². A232686

Decimal expansion of log(59/2). A16606

A coefficients of characteristic polynomials of A_n Cartan matrices times their transposes: t(n,m,d)=If[ n == m, 2, If[n == m - 1 || n == m + 1, -1, 0]]. M(d)=t(n,m,d)*Transpose[t(n,m,d)]. A158199