Properties of the Number 11528

Eleven Thousand Five Hundred Twenty-Eight

Basics

Value: 11527 → 11528 → 11529

Parity: even

Prime: No

Previous Prime: 11527

Next Prime: 11549

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 11 × 131

Divisors: 1, 2, 4, 8, 11, 22, 44, 88, 131, 262

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110100001000

Octal: 26410

Duodecimal: 6808

Hexadecimal: 2d08

Square: 132894784

Square Root: 107.36852425175638

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

Four times pentagonal numbers: a(n) = 2·n*(3·n-1). A33579

Convolution of A001045(n+1) (generalized (1,2)-Fibonacci), n >= 0, with itself. A73371

First of two consecutive numbers with at least one 3 in their prime signature. A176313

Coefficients of polynomials in a Melham conjecture. A217475

Number of non-congruent solutions of x² + y² + z² + t² == 0 mod n. A240547

Number of solutions to x² + y² + z² + t² == n (mod 2·n) for x,y,z,t in [0, 2·n). A229294

a(n) = (1/2) * ∑_{|k|<=2·sqrt(p)} k⁶*H(4·p-k²) where H() is the Hurwitz class number and p is the n-th prime. A297492

Consecutive states of the linear congruential pseudo-random number generator 172·s mod 30307 when started at s=1. A385032

Numbers k such that k and k+1 both have 16 divisors. A274359

(1/4) * number of ways to select 3 distinct points forming a triangle of unsigned area = n/2 from a square of grid points with side length n. A320310