Properties of the Number 13470

Thirteen Thousand Four Hundred Seventy

Basics

Value: 13469 → 13470 → 13471

Parity: even

Prime: No

Previous Prime: 13469

Next Prime: 13477

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 449

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 449, 898

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010010011110

Octal: 32236

Duodecimal: 7966

Hexadecimal: 349e

Square: 181440900

Square Root: 116.06032913963324

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

Numbers k such that the product of the first k composite numbers minus 1 is a prime. A57017

Matrix product of unsigned Stirling1-triangle |A008275(n,k)| and Stirling1-triangle A008275(n,k). A79642

Number of (w,x,y) with all terms in {0,...,n} and even range. A212975

Number of partitions of n into an odd number of parts that are not multiples of 3. A339405

Denominators of continued fraction convergents to sqrt(896). A42733

Integers n > 1 such that A130280(4n²) < n, i.e., there is an m < n, m > 1 such that 4n²(m² - 1) + 1 is a square. A130281

T(n, k) = [x^k] ∑_k=0..n |Stirling1(n, k)|*FallingFactorial(x, k), triangle read by rows, for n >= 0 and 0 <= k <= n. A325873

Expansion of ∏_{i>=1, j>=1} (1 + i·x^i·j). A333653

E.g.f.: log(1 - log(1 - x))² / 2. A341575

Number of alkyls C_n+15 H_2n+10 (Phenan) with n carbon atoms. A649