Properties of the Number 11940

Eleven Thousand Nine Hundred Forty

Basics

Value: 11939 → 11940 → 11941

Parity: even

Prime: No

Previous Prime: 11939

Next Prime: 11941

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 199

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10111010100100

Octal: 27244

Duodecimal: 6AB0

Hexadecimal: 2ea4

Square: 142563600

Square Root: 109.27030703718188

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

Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is Euler transform of (j->j^k). A144048

Number T(n,k) of Dyck paths of semilength n such that the minimal number of peaks over all positive levels equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A288387

Decimal value of the bitmap of active segments in 7-segment display of the number n, variant 1: bits 0-6 refer to segments from top to bottom, left to right. A234691

Expansion of ∏_k>=1 (1 - x^k)^-k⁴. A23873

Number of partitions of n such that (greatest part) - (least part) >= number of parts. A237834

Expansion of g.f. A(x) satisfying 3·x = ∑_n=-oo..+oo x^n*(3·n+1/2) * (A(x)^3·n - 1/A(x)^3·n+1). A361553

Numbers k such that in a rotated-square spiral with positive integers (A215468) among k's eight nearest neighbors five or more are primes. A215471

Number of factorizations with 3 levels of parentheses indexed by prime signatures. A050340(A025487). A50341

a(n) = 3·n*(5·n-1)/2. A167469

Denominators of continued fraction convergents to sqrt(44). A41075