Properties of the Number 1144

One Thousand One Hundred Forty-Four

Basics

Value: 1143 → 1144 → 1145

Parity: even

Prime: No

Previous Prime: 1129

Next Prime: 1151

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 11 × 13

Divisors: 1, 2, 4, 8, 11, 13, 22, 26, 44, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001111000

Octal: 2170

Duodecimal: 7B4

Hexadecimal: 478

Square: 1308736

Square Root: 33.823069050575526

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

Multiples of 11 containing an 11 in their decimal representation. A121031

Numbers n such that (n⁹⁷-1)/(n-1) is prime. A217089

Table read by rows: T(n,k) = number of k-gons, k >= 3, formed inside a square with edge length 1 by the straight line segments mutually connecting all vertices and points that divide the sides into segments with lengths equal to the Farey series of order n = A006842(n,m)/A006843(n,m), m = 1..A005728(n). A358889

Table by antidiagonals, T(n,k) is the number of partitions of {1..(nk)} that are invariant under a permutation consisting of n k-cycles. A162663

1/∏_n>=1 (1 - a(n)*xⁿ) = 1 + ∑_k>=1 F(k+1)*x^k = 1/(1-x-x²), where F(n) = A000045(n) (Fibonacci numbers). A157162

Positive even numbers that are not the sum of a pair of twin primes. A7534

a(n) = 2·n² + 8·n. A67728

a(n) = n*(n + 18). A98850

Shifts left under Stirling2 transform. A3659

Numbers whose base-10 expansion has no run of digits with length < 2. A33023