Properties of the Number 32840

Thirty-Two Thousand Eight Hundred Forty

Basics

Value: 32839 → 32840 → 32841

Parity: even

Prime: No

Previous Prime: 32839

Next Prime: 32843

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 821

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 821, 1642

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000000001001000

Octal: 100110

Duodecimal: 17008

Hexadecimal: 8048

Square: 1078465600

Square Root: 181.2181006411887

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

Sums of distinct powers of 8. A33045

Triangular array generated by its row sums: T(n,0)=1 for n >= 0, T(1,1)=2, T(n,k)=T(n,k-1)+d·r(n-k) for k=2,3,...,n, d=(-1)^k+1, n >= 2, r(h)=sum of the numbers in row h of T. A54098

Sequence a(n) = 2 + 3·A001519(n+1) appearing in a certain four circle touching problem together with A246639. A246638

Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape V; triangle T(n,k), n>=0, 0<=k<=max(0,n-2+delta_n,3), read by rows. A247709

Sums of 3 distinct powers of 8. A38485

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)*b(n), where a(0) = 2, a(1) = 4, b(0) = 1, b(1) = 3, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A296270

Positive numbers having the same set of digits in base 2 and base 8. A37413

If n mod 2 = 0 then 2·Sum(floor(C(n,w)/(2·w+1)),w=0..n/2-1)+floor(C(n,n/2)/(n+1)) otherwise 2·Sum(floor(C(n,w)/(2·w+1)),w=0..(n-1)/2). A85570

Numbers whose set of base-16 digits is {3,4}. A32840