Properties of the Number 13493

Thirteen Thousand Four Hundred Ninety-Three

Basics

Value: 13492 → 13493 → 13494

Parity: odd

Prime: No

Previous Prime: 13487

Next Prime: 13499

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 103 × 131

Divisors: 1, 103, 131, 13493

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010010110101

Octal: 32265

Duodecimal: 7985

Hexadecimal: 34b5

Square: 182061049

Square Root: 116.15937327654622

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

Positions of 3's in A234323. A234804

Sequence of pairwise relatively prime numbers of class P₈ (see comment in A275246). A275253

Constant term of the reduction by x² -> x+1 of the polynomial p(n,x) defined at Comments. A192960

a(n) = 2ⁿ mod n³. A233442

Satisfies a(n)/A079159(n) = p_n, the n-th prime (n>0), a(0)=1. A79161

Numbers n such that σ (φ ( n ) ) = σ (σ (n ) ) where φ is Euler's totient and σ is the multiplicative sum-of-divisors function. A65556

Indices of primes in sequence defined by A(0) = 71, A(n) = 10·A(n-1) - 9 for n > 0. A101128

Number of strings of numbers x(i=1..7) in 0..n with sum i³*x(i) equal to 343·n. A184262

a(n) = a(n-1) + 3·a(n-2) -2·a(n-3) - 2·a(n-4), where a(0) = 1, a(1) = -1, a(2) = -1, a(3) = 2. A295737

Numbers k such that there is no prime p and index j > k such that A002182(j) = p·A002182(k). A309042