Properties of the Number 13779

Thirteen Thousand Seven Hundred Seventy-Nine

Basics

Value: 13778 → 13779 → 13780

Parity: odd

Prime: No

Previous Prime: 13763

Next Prime: 13781

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 1531

Divisors: 1, 3, 9, 1531, 4593, 13779

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010111010011

Octal: 32723

Duodecimal: 7B83

Hexadecimal: 35d3

Square: 189860841

Square Root: 117.3839852790831

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

∑_i=0..n ∑_j=0..n (i AND j), where AND is the binary logical AND operator. A224924

The (10ⁿ)-th odd-digit number. A75879

n + σ(n) + φ(n) is a cube. A116008

Numbers k such that the decimal digits of k*(k+1) are a permutation of those of k*(k-1). A181775

Difference between the n-th partial sum of the squares (A000330) and the n-th partial sum of the primes (A007504). A108753

Numbers of the form x² + y² + z² = φ(x·y*z) + σ(x·y*z). A173792

Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array. A220045

Coefficient of xⁿ in the expansion of ( 1/(1-x) * (1+x³) )ⁿ. A370246

Numbers that contain odd digits only. A14261

G.f. A(x) satisfies: A(x)² - 6·A(x)³ = A(x²). A274737