Properties of the Number 6408

Six Thousand Four Hundred Eight

Basics

Value: 6407 → 6408 → 6409

Parity: even

Prime: No

Previous Prime: 6397

Next Prime: 6421

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 89

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 1100100001000

Octal: 14410

Duodecimal: 3860

Hexadecimal: 1908

Square: 41062464

Square Root: 80.049984384758

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

Sum of squares of the first n primes. A24450

a(n) = (5·n-7)*(n-1). A147874

Numbers k such that k² is a palindrome when written in base 17. A118651

Numbers k such that φ(x) = k has exactly 12 solutions. A60675

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum unequal to 4 or 5 and every diagonal and antidiagonal sum equal to 4 or 5. A251905

Triangle, read by rows, equal to the matrix inverse of R=A113389. A114159

Lower left-hand y-coordinate for 3 X 3 invisible forest with 0 < x < y. A325605

a(n) = 100·n² + n. A55438

Expansion of ∏_k>=1 (1 + x^k - x^3·k) / (1 - x^k). A266650

Smallest member of three consecutive numbers each of which is the sum of two nonzero squares (not necessarily different). A64716