Properties of the Number 6485

Six Thousand Four Hundred Eighty-Five

Basics

Value: 6484 → 6485 → 6486

Parity: odd

Prime: No

Previous Prime: 6481

Next Prime: 6491

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 1297

Divisors: 1, 5, 1297, 6485

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101010101

Octal: 14525

Duodecimal: 3905

Hexadecimal: 1955

Square: 42055225

Square Root: 80.52949770115296

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

Dispersion of A016813 (4k+1, k>1), by antidiagonals. A191667

Denominators of continued fraction convergents to sqrt(13). A41019

Array A read by upward antidiagonals in which the entry A(n,k) in row n and column k is defined by A(n, k) = 4ⁿ*(6·k - 3 - 2*(-1)ⁿ) + (4ⁿ - 1)/3, n,k >= 1. A371100

T(n,k)=Number of nXk binary arrays with every 1 having exactly one king-move neighbor equal to 1. A183442

Rectangular array with all start numbers Me(n, k), k >= 1, for the Collatz operation ud^2·n, n >= 1, ending in an odd number, read by antidiagonals. A238475

20k²-20k-5 interleaved with 20k²+5 for k=>0. A216876

Triangle of coefficients of Gaussian polynomials [2n+5,4]_q represented as finite sum of terms (1+q²)^k*q^g-k, where k = 0,1,...,g with g=4n+2. A267484

Number of (unordered) ways of making change for n cents using coins of 1/2, 1, 2, 3, 5, 10, 20, 25, 50, 100 cents (all historical U.S.A. coinage denominations up to 100 cents). A67997

Numbers whose set of base 6 digits is {0,5}. A97252

Numbers k such that (2·k)!/k!-1 is prime. A112853