Properties of the Number 39850

Thirty-Nine Thousand Eight Hundred Fifty

Basics

Value: 39849 → 39850 → 39851

Parity: even

Prime: No

Previous Prime: 39847

Next Prime: 39857

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 ² × 797

Divisors: 1, 2, 5, 10, 25, 50, 797, 1594, 3985, 7970

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 1001101110101010

Octal: 115652

Duodecimal: 1B08A

Hexadecimal: 9baa

Square: 1588022500

Square Root: 199.6246477767713

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

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4. A197350

Consecutive states of the linear congruential pseudo-random number generator for the Texas Instruments TI99 when started at 1. A384221

Numbers k such that abs(prime(k)-k*τ(k)) < sqrt(k). A68543

Expansion of g.f. x*(1-x+x⁵+x⁶-x⁷+x⁹)/(1-2·x+x⁴+x⁶-2·x⁷+x¹⁰). A97596

Number of nX3 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4. A197345

Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302518

Number of ways to choose a multiset of values whose sum is n from the first floor(1+log₂(n)) rows of Pascal's triangle. A366120

Expansion of x²*(1-x²)*(1-3·x²)/(1-x-5·x²+4·x³+5·x⁴-3·x⁵). A203837

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302515

Trajectory of 537 under the Reverse and Add! operation carried out in base 2, written in base 10. A77076