Properties of the Number 6624

Six Thousand Six Hundred Twenty-Four

Basics

Value: 6623 → 6624 → 6625

Parity: even

Prime: No

Previous Prime: 6619

Next Prime: 6637

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁵ × 3 ² × 23

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1100111100000

Octal: 14740

Duodecimal: 3A00

Hexadecimal: 19e0

Square: 43877376

Square Root: 81.38795979750321

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

Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 25 (most significant digit on right). A61978

a(n) = n*(n+1)²/2. A6002

a(n) = 3·n² + 6·n. A67725

a(n) = ∏_i=0..n-1 (7·i+2). A84947

Numbers divisible by the sum and product of their digits. A38186

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero. A232076

Numbers whose product of prime indices is twice their sum of prime indices. A326151

Septuple factorial, 7-factorial, n!7, n!!!!!!!, a(n) = n·a(n-7) if n > 1, else 1. A114799

a(n) = 10·binomial(n,2) + 9·n. A135705

Number of primes between n·100000 and (n+1)*100000. A38825