Properties of the Number 6495

Six Thousand Four Hundred Ninety-Five

Basics

Value: 6494 → 6495 → 6496

Parity: odd

Prime: No

Previous Prime: 6491

Next Prime: 6521

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 433

Divisors: 1, 3, 5, 15, 433, 1299, 2165, 6495

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101011111

Octal: 14537

Duodecimal: 3913

Hexadecimal: 195f

Square: 42185025

Square Root: 80.59156283383516

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 first k numbers in column k of the natural number array A000027; by antidiagonals. A185787

T(n,k)=Number of length n+3 0..k arrays with some disjoint pairs in every consecutive four terms having the same sum. A247533

Triangle read by rows: T(n,m) (n >= m >= 1) = number of vertices formed by drawing the lines connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares. A331453

Prime(a(n)) + ... + prime(a(n)+3) is a square = A051395(n)². A72849

Bisection of toothpick sequence A139250. A159791

Sum of numbers in n-th upward diagonal of triangle in A079823. A79824

Integers of the form 8k+7 that can be written as a sum of four distinct 'almost consecutive' squares. A243577

Integers of the form 8k + 7 that can be written as a sum of four distinct squares of the form m, m + 1, m + 3, m + 5, where m == 2 (mod 4). A243580

a(n) = ∑_k=0..[n/2] C(n-k,k)³*n/(n-k), n>=1. A166897

Number of nondividing sets on {1,2,...,n}. A51014