Properties of the Number 13427

Thirteen Thousand Four Hundred Twenty-Seven

Basics

Value: 13426 → 13427 → 13428

Parity: odd

Prime: No

Previous Prime: 13421

Next Prime: 13441

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 29 × 463

Divisors: 1, 29, 463, 13427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010001110011

Octal: 32163

Duodecimal: 792B

Hexadecimal: 3473

Square: 180284329

Square Root: 115.87493257818966

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) = floor((10·n³ + 57·n² + 102·n + 72) / 72). A254875

Nonprimes k such that k divides 3^k-1 - 2^k-1. A73631

Difference between the number of primes with n digits (A006879) and the difference of consecutive integers nearest to Riemann(10ⁿ) (see A228113). A228114

a(n) = 16·n² - n. A157446

a(n) = ∑_k=3..n binomial(k-1,2) * floor(n/k). A366970

a(n) = (n+1)*prime(n) + n·prime(n+1). A97240

Number of distinct sets of nonnegative integers with perimeter n, as defined in the comments. A182372

a(n) = 841·n² - 29. A158667

a(n) = n*(n² + 3·n - 2)/2. A256857

Pseudoprimes to base 51. A20179