Properties of the Number 81046

Eighty-One Thousand Forty-Six

Basics

Value: 81045 → 81046 → 81047

Parity: even

Prime: No

Previous Prime: 81043

Next Prime: 81047

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 ² × 827

Divisors: 1, 2, 7, 14, 49, 98, 827, 1654, 5789, 11578

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110010010110

Octal: 236226

Duodecimal: 3AA9A

Hexadecimal: 13c96

Square: 6568454116

Square Root: 284.68579170727855

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

Series(W(exp(1)*(1+x)), x) = sum( a[ n ]/(2^2·n*n!), n=0..infinity), where W is the Lambert W function. A13703

Difference of the first two Stirling numbers of the first kind. A81046

Smallest k such that A073259(k)=n or 0 if there is no such value; the first number of which length of fixed-point-list terminated by k-th composite number equals n. A73323