Properties of the Number 6750

Six Thousand Seven Hundred Fifty

Basics

Value: 6749 → 6750 → 6751

Parity: even

Prime: No

Previous Prime: 6737

Next Prime: 6761

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 5 ³

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 25

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1101001011110

Octal: 15136

Duodecimal: 3AA6

Hexadecimal: 1a5e

Square: 45562500

Square Root: 82.15838362577492

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Prime factorization representation of Stern polynomials: a(0) = 1, a(1) = 2, a(2n) = A003961(a(n)), a(2n+1) = a(n)*a(n+1). A260443

Numbers k such that k¹²⁸ + 1 is prime. A56994

Hypotenuses for which there exist exactly 3 distinct integer triangles. A84647

a(n) = 2·n³. A33431

Numbers that are primally tight, have 2 as first prime and weakly ascending powers. A133808

a(n) = ∏_d∣n A276086(n/d)^A349394(d). A380459

Odd bisection of A260443 (the even terms): a(n) = A260443((2·n)+1). A277324

Number of regions in regular n-gon which are quadrilaterals (4-gons) when all its diagonals are drawn. A67151

a(n) = Product{k>=0} (1 + floor(n/3^k)). A132327

Irregular triangle read by rows: T(n,k) = ∑_i=0..k (-1)ⁱ * binomial(3·n+1,i) * binomial(k+3-i,3)ⁿ, 0 <= k <= 3*(n-1). A174266