Properties of the Number 2004

Two Thousand Four

Basics

Value: 2003 → 2004 → 2005

Parity: even

Prime: No

Previous Prime: 2003

Next Prime: 2011

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 167

Divisors: 1, 2, 3, 4, 6, 12, 167, 334, 501, 668

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11111010100

Octal: 3724

Duodecimal: 11B0

Hexadecimal: 7d4

Square: 4016016

Square Root: 44.76605857119878

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

Partial sums of A299258. A299264

Triangle read by rows: T(n,k) = number of unlabeled graphs with n nodes and connectivity exactly k (n>=1, 0<=k<=n-1). A259862

Number of partitions of n in which the least part is even. A26805

Number of terms in n-th derivative of a function composed with itself 3 times. A22811

Numbers k such that Bernoulli number B_k has denominator 2730. A249134

Vertex number of a square spiral in which the length of the first two edges are the legs of the primitive Pythagorean triple [3, 4, 5]. The edges of the spiral have length A195019. A195020

a(n) = n*(7·n - 1)/2. A22264

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

Twice partition numbers. A139582

Number of partitions satisfying (cn(2,5) = cn(3,5) = 0). A36820

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