Properties of the Number 10781

Ten Thousand Seven Hundred Eighty-One

Basics

Value: 10780 → 10781 → 10782

Parity: odd

Prime: Yes

Previous Prime: 10771

Next Prime: 10789

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 10781

Divisors: 1, 10781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101000011101

Octal: 25035

Duodecimal: 62A5

Hexadecimal: 2a1d

Square: 116229961

Square Root: 103.83159442096611

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

Primes with 10 as smallest positive primitive root. A61323

Primes p such that p²+p-1 and p²+p+1 are twin primes. A88483

Primes for which the weight as defined in A117078 is 9 and the gap as defined in A001223 is 8. A118922

Primes p such that the multiplicative order of 2 modulo p is (p-1)/5. A1135

Primes p such that (2·p)³ + 1 is a semiprime. A237038

Number of colors that can be mixed with n >= 0 units of yellow, blue, red. A48241

Start with two vertices and draw a circle around each whose radius is the distance between the vertices. The sequence gives the number of regions constructed after n iterations of drawing circles with this same radius around every new vertex created from all circles' intersections. A374337

Lesser of emirp pairs whose digital sums are also emirps (A178091). A178092

Largest prime number p such that xⁿ + yⁿ mod p does not take all values on Z/pZ. A355920

Primes congruent to 14 mod 37. A142123