Properties of the Number 12538

Twelve Thousand Five Hundred Thirty-Eight

Basics

Value: 12537 → 12538 → 12539

Parity: even

Prime: No

Previous Prime: 12527

Next Prime: 12539

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 6269

Divisors: 1, 2, 6269, 12538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011111010

Octal: 30372

Duodecimal: 730A

Hexadecimal: 30fa

Square: 157201444

Square Root: 111.97321108193691

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

Number of integer partitions of n such that (length) * (maximum) >= 2·n. A361906

Maximal term of TRIP-Stern sequence of level n corresponding to permutation triple (e,132,e). A271489

Expansion of (1+x)/(1-2x-x²-x³). A116413

4th powers written backwards. A2108

a(1)= 10000, a(2)= 10000; for n>2, a(n)= ( a(n-2) + a(n-1) ) (mod 20000). A96973

Semiprimes (A001358) whose digit reversal is a powerful(1) number (A001694). A115688

Semiprimes (A001358) whose digit reversal is a square. A115710

Triangle read by rows : T(n,0) = n+1, T(n,k)=0 if k<0 or if k>n, T(n,k) = k·T(n-1,k) - T(n-1,k-1). A159881

Number of integer partitions of n with origin-to-boundary graph-distance equal to 4. A384562

Numbers k such that the continued fraction for sqrt(k) has period 79. A20418