Properties of the Number 2006

Two Thousand Six

Basics

Value: 2005 → 2006 → 2007

Parity: even

Prime: No

Previous Prime: 2003

Next Prime: 2011

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 × 17 × 59

Divisors: 1, 2, 17, 34, 59, 118, 1003, 2006

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11111010110

Octal: 3726

Duodecimal: 11B2

Hexadecimal: 7d6

Square: 4024036

Square Root: 44.78839135311738

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

Consider n equally spaced points along a line and join every pair of points by a semicircle above the line; a(n) is the number of intersection points. A290447

Number of pairwise coprime strict compositions of n, where a singleton is not considered coprime unless it is (1). A337561

'Eban' numbers (the letter 'e' is banned!). A6933

Number of subsets of {1,2,...,n} with relatively prime elements. A85945

Numbers n such that the decimal expansions of both n and n² have 0 as smallest digit and 6 as largest digit. A256633

Number of subset-sums of strict integer partitions of n. A365925

Numbers where 0 outnumbers any other digit. A292450

Numbers whose base-2 and base-10 expansions have the same digit sum. A37308

Numbers k such that σ(k) = σ(k+8). A15876

Number of semiprimes s such that 2ⁿ < s <= 2ⁿ⁺¹. A120033

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