Properties of the Number 10557

Ten Thousand Five Hundred Fifty-Seven

Basics

Value: 10556 → 10557 → 10558

Parity: odd

Prime: No

Previous Prime: 10531

Next Prime: 10559

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 17 × 23

Divisors: 1, 3, 9, 17, 23, 27, 51, 69, 153, 207

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10100100111101

Octal: 24475

Duodecimal: 6139

Hexadecimal: 293d

Square: 111450249

Square Root: 102.74726273726225

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

a(n) = floor(n(n+2)(2n+1)/8). A2717

a(n) = n*(n² + 2·n - 1)/2. A127736

Row 5 of A277710: Positions of 5's in A264977; positions of 10's in A277330. A277715

Number of positive meanders (walks starting at the origin and ending at any altitude > 0 that never touch or go below the x-axis in between) with n steps from {-2,-1,1,2}. A278394

Denominator of ∏_k=0..n ((2·k+1)/(2·k+2))^(-1^t(k)) where t(k)=A010060(k) (Thue-Morse sequence). A94542

a(n) = n*(n+1)*(4·n+1)/2. A135713

Wiener index of the prism graph Y_n on 2n nodes. A138179

Right edge of the triangle A045975. A204557

n plus a googol is prime. A49014

Number of minimum edge covers in the n-dipyramidal graph. A298822