Properties of the Number 48781

Forty-Eight Thousand Seven Hundred Eighty-One

Basics

Value: 48780 → 48781 → 48782

Parity: odd

Prime: Yes

Previous Prime: 48779

Next Prime: 48787

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 48781

Divisors: 1, 48781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011111010001101

Octal: 137215

Duodecimal: 24291

Hexadecimal: be8d

Square: 2379585961

Square Root: 220.86421167767313

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) = G_n(5), where G_n(k) is the Goodstein function defined in A266201. A266204

Number of polyominoes with n cells that tile the plane isohedrally but not by translation or by 180-degree rotation (Conway criterion). A75204

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 1,1 2,2 -1,0 or 0,-1. A264655

a(n) is the smallest integer k for which sigma_n(k) <= sigma_n(k-1) where sigma_n(k) = sum of the n-th powers of the divisors of k. A98475

Primes p such that p·q*r + 6 and p·q*r - 6 are primes where q and r are the next two primes after p. A240715

Primes of the form 2n³+3. A201108

Number of (n+1)X(5+1) arrays of permutations of 0..n·6+5 with each element having directed index change 1,1 2,2 -1,0 or 0,-1. A264652

Number of (n+1)X(6+1) arrays of permutations of 0..n·7+6 with each element having directed index change 1,1 2,2 -1,0 or 0,-1. A264653

Twin primes both of which are the sum of three positive cubes. A272376

Primes such that moving the last digit to the front produces a triangular number. A384954