Properties of the Number 11445

Eleven Thousand Four Hundred Forty-Five

Basics

Value: 11444 → 11445 → 11446

Parity: odd

Prime: No

Previous Prime: 11443

Next Prime: 11447

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 109

Divisors: 1, 3, 5, 7, 15, 21, 35, 105, 109, 327

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10110010110101

Octal: 26265

Duodecimal: 6759

Hexadecimal: 2cb5

Square: 130988025

Square Root: 106.98130677833394

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

Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs with n vertices and exactly k triangles, 0 <= k <= binomial(n,3). A372170

Irregular triangle read by rows where T(n,k) is the number of simple graphs covering n vertices with exactly k triangles, 0 <= k <= binomial(n,3). A372167

G.f.: 1/((1-x)*(1-x²)*(1-x³)²*(1-x⁴)*(1-x⁵)). A3402

-3-Knödel numbers. A225507

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays x(i,j) with row sums sum{j³*x(i,j), j=1..k+1} nondecreasing, and column sums sum{i³*x(i,j), i=1..n+1} nondecreasing. A232860

First trisection of A061037 (Balmer line series of the hydrogen atom). A142590

a(n) = (4·n+1)*(4·n+5). A3185

a(n) = A061037(7·n+2). A165943

a(n) = prime(n)²-4. A166010

Numbers k that divide 2^k+3 - 1. A69927