Properties of the Number 12388

Twelve Thousand Three Hundred Eighty-Eight

Basics

Value: 12387 → 12388 → 12389

Parity: even

Prime: No

Previous Prime: 12379

Next Prime: 12391

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 19 × 163

Divisors: 1, 2, 4, 19, 38, 76, 163, 326, 652, 3097

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000001100100

Octal: 30144

Duodecimal: 7204

Hexadecimal: 3064

Square: 153462544

Square Root: 111.30139262381222

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

G.f. satisfies A³ = BINOMIAL(A²). A90351

Number of partitions of n where the difference between consecutive parts is at most 2. A224956

Number of partitions p of n such that (number of numbers in p of form 3k+2) < (number of numbers in p of form 3k). A241740

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w³ >= x³ + y³. A211651

Numbers which need ten 'Reverse and Add' steps to reach a palindrome. A65215

Structured truncated tetrahedral numbers. A100156

Denominators of continued fraction convergents to sqrt(460). A41877

Numbers n such that 6·10ⁿ + 3·R_n - 2 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A103032

2·a(n) is the least number where k sets a new record such that 2·a(n)-k and 2·a(n)+k are prime and at least one of 2·a(n)-j and 2·a(n)+j is composite for all 0<j<k. A307881

Sum of absolute values of coefficients of expansion of (1-x)(1-x²)(1-x³)...(1-xⁿ). A61553