Properties of the Number 11285

Eleven Thousand Two Hundred Eighty-Five

Basics

Value: 11284 → 11285 → 11286

Parity: odd

Prime: No

Previous Prime: 11279

Next Prime: 11287

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 37 × 61

Divisors: 1, 5, 37, 61, 185, 305, 2257, 11285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000010101

Octal: 26025

Duodecimal: 6645

Hexadecimal: 2c15

Square: 127351225

Square Root: 106.23088063270491

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

Molien series for invariants of finite Coxeter group A₇. A266776

L.g.f.: log( ∑_n>=0 x^n² ), the log of the characteristic function of the squares. A162552

Numbers n such that φ(n)=2*φ(n-1). A171271

Shiraishi numbers: a parametrized family of solutions c to the Diophantine equation a³ + b³ + c³ = d³ with d = c+1. A226903

NSW pseudoprimes: odd composite numbers k such that A002315((k-1)/2) == 1 (mod k). A330276

a(n) is the smallest positive integer m such that if k >= m then a(k+1,n)^1/(k+1) <= a(k,n)^1/k, where a(k,n) is the k-th term of the sequence {p | p and p+2n are primes}. A248855

Odd composite integers m such that A087130(m) == 5 (mod m). A335671

Expansion of x/(1 - 5·x - 12·x²). A15548

Expansion of q^-1 * f(-q², -q⁵)² * f(-q³, -q⁴) / f(-q¹, -q⁶)³ in powers of q where f() is Ramanujan's two-variable θ function. A108481

Numbers n that are the product of three distinct odd primes and x² + y² = n has integer solutions. A264498