Properties of the Number 13426

Thirteen Thousand Four Hundred Twenty-Six

Basics

Value: 13425 → 13426 → 13427

Parity: even

Prime: No

Previous Prime: 13421

Next Prime: 13441

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 ² × 137

Divisors: 1, 2, 7, 14, 49, 98, 137, 274, 959, 1918

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11010001110010

Octal: 32162

Duodecimal: 792A

Hexadecimal: 3472

Square: 180257476

Square Root: 115.87061750072795

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) = number of solid (i.e., three-dimensional) partitions of n. A293

Triangle of coefficients of polynomials P(n,t) related to the Mittag-Leffler function, where P(n,t) = ∏_k=0..n-2 n·t-k. A251592

Triangle T(n,k) read by rows: T(n,k) is the number of compositions of n with k parts p at position p (fixed points), n>=0, 0<=k<=A003056(n). A238350

Generalized unsigned Stirling1 triangle, S1p(7). A134141

Number of compositions of n having exactly two fixed points. A240737

Nonsquarefree numbers k such that A003415(k) divides A276086(k), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function. A371085

7 times heptagonal numbers: a(n) = 7·n*(5·n-3)/2. A152777

Numerators of exponential expansion of (3/(2·log(1+x)))*(1 - 1/(1+x)^2/3). A284862

Numbers k such that k+1 is composite and divides 3^k-2^k. A68410

If D[n] is divisor-set of n, then in set of 1+D only 2 primes occur:{2,3}; also n is not squarefree. A72607