Properties of the Number 11628

Eleven Thousand Six Hundred Twenty-Eight

Basics

Value: 11627 → 11628 → 11629

Parity: even

Prime: No

Previous Prime: 11621

Next Prime: 11633

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 17 × 19

Divisors: 1, 2, 3, 4, 6, 9, 12, 17, 18, 19

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110101101100

Octal: 26554

Duodecimal: 6890

Hexadecimal: 2d6c

Square: 135210384

Square Root: 107.83320453366856

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

Binomial coefficients C(n,5). A389

Tritriangular numbers: a(n) = binomial(binomial(n,2),2) = n*(n+1)*(n-1)*(n-2)/8. A50534

a(n) = binomial(4·n-1,n). A262977

Number of integer partitions of n such that the parts have the same mean as the multiplicities. A360068

a(n) = 2·n*(4·n + 1). A33585

Triangle of even numbered entries of odd numbered rows of Pascal's triangle A007318. A91042

Triangle read by rows giving the coefficients of formulas generating each variety of S1(n,k) (unsigned Stirling numbers of first kind). The p-th row (p>=1) contains T(i,p) for i=1 to 2·p, where T(i,p) satisfies ∑_i=1..2·p T(i,p) * C(n,i). A94216

Numbers that occur 5 or more times in Pascal's triangle. A3015

Upper triangle of Catalan Number Wall. A78920

Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1). A103327