Properties of the Number 30006

Thirty Thousand Six

Basics

Value: 30005 → 30006 → 30007

Parity: even

Prime: No

Previous Prime: 29989

Next Prime: 30011

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 1667

Divisors: 1, 2, 3, 6, 9, 18, 1667, 3334, 5001, 10002

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111010100110110

Octal: 72466

Duodecimal: 15446

Hexadecimal: 7536

Square: 900360036

Square Root: 173.2224003990246

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 n X 2 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order. A240513

Expansion of ∏_m>=1 (1+q^m)^-9. A22604

Number T(n,k) of set partitions of [n], where k is minimal such that for all j in [n]: j is member of block b implies b = 1 or at least one of j-1, ..., j-k is member of a block >= b-1; triangle T(n,k), n >= 0, 0 <= k <= max(floor(n/2), n-2), read by rows. A287640

Numbers k such that 3·2^k + 7 is prime. A59746

If n==0 (mod 3) then a(n)=a(n-1); if n==1 (mod 3) then a(n)=a(n-2)+a(n-3); if n==2 (mod 3) then a(n)=a(n-3)+a(n-4)+a(n-5). A104204

Numbers k such that k and k² use only the digits 0, 1, 3, 6 and 9. A136850

Numbers k such that k and k² use only the digits 0, 2, 3, 6 and 9. A136894

Numbers k such that k and k² use only the digits 0, 3, 4, 6 and 9. A136932

Numbers k such that k and k² use only the digits 0, 3, 5, 6 and 9. A136939

Numbers k such that k and k² use only the digits 0, 3, 6, 7 and 9. A136944