Properties of the Number 11388

Eleven Thousand Three Hundred Eighty-Eight

Basics

Value: 11387 → 11388 → 11389

Parity: even

Prime: No

Previous Prime: 11383

Next Prime: 11393

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 13 × 73

Divisors: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110001111100

Octal: 26174

Duodecimal: 6710

Hexadecimal: 2c7c

Square: 129686544

Square Root: 106.7145725756328

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 13 containing a 13 in their decimal representation. A121033

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median plus the lower median of every 2X2 subblock equal. A236987

Numbers k such that k | sigma₆(k). A55710

a(n) = n*(15·n - 1)/2. A22272

Expansion of 1/(1 - 4·x²/(1-x))^3/2. A377204

Row sums of number triangle A116382. A116383

Number of lattice points in the closed region bounded by the graphs of y = (5/6)*x², x = n, and y = 0, excluding points on the x-axis. A227347

a(n) = (3 + 2·n - 3·n² + 4·n³ - 3*((-1 + n) mod 2))/6. A304487

Number of ways of getting 5 of a kind, royal flush, other straight flush, 4 of a kind, full house, other flush, other straight, 3 of a kind, 2 pair, a pair or no pair in 5-card poker with two jokers wild. A53083

Number of ways of getting no pair, a pair, 2 pair, 3 of a kind, other straight, other flush, full house, 4 of a kind, other straight flush, royal flush or 5 of a kind in 5-card poker with two jokers wild. A53084