Properties of the Number 11938

Eleven Thousand Nine Hundred Thirty-Eight

Basics

Value: 11937 → 11938 → 11939

Parity: even

Prime: No

Previous Prime: 11933

Next Prime: 11939

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 47 × 127

Divisors: 1, 2, 47, 94, 127, 254, 5969, 11938

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111010100010

Octal: 27242

Duodecimal: 6AAA

Hexadecimal: 2ea2

Square: 142515844

Square Root: 109.26115503691145

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

a(n) is the number of 5 element sets of distinct integer-sided trapezoids whose base angles are 60 degrees that fill an equilateral triangle of side n units having three vertices of a trapezoid inside the triangle. A391039

Coefficients arising in the enumeration of configurations of linear chains. A38747

Digitally balanced numbers (A031443) whose squares are also digitally balanced. A353139

Expansion of ∏_k>=0 (1+x^4·k+1)⁴. A261638

a(n) is the least multiple of n that is a "binary antipalindrome" (i.e., an element of A035928). A342582

a(0) = 1; a(n) = (1/3) * ∑_k=1..n (4^k-1) * a(k-1) * a(n-k). A376113

a(n) = (2·n+1)*(11·n+1). A33575

Number of nondecreasing strings of numbers x(i=1..6) in -n..n with sum x(i)³ equal to 0. A188280

Number of (n+1)X4 0..1 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors. A205067

Numbers that are not the sum of distinct Lucas numbers 1,3,4,7,11, ... (A000204). A54770