Properties of the Number 9865

Nine Thousand Eight Hundred Sixty-Five

Basics

Value: 9864 → 9865 → 9866

Parity: odd

Prime: No

Previous Prime: 9859

Next Prime: 9871

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 1973

Divisors: 1, 5, 1973, 9865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10011010001001

Octal: 23211

Duodecimal: 5861

Hexadecimal: 2689

Square: 97318225

Square Root: 99.32270636667126

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) is the solution to the postage stamp problem with n denominations and 5 stamps. A1215

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 5x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >=3, where u = p(2,x), v = 1 - x - x². A367210

Number T(n,k) of proper k-times partitions of n; triangle T(n,k), n >= 0, 0 <= k <= max(0,n-1), read by rows. A327639

3rd power of rooted tree enumerator; number of linear forests of 3 rooted trees. A242

Number of nonnegative solutions of x1² + x2² + ... + x10² = n. A45852

Number of ways to fill a square matrix with the parts of a strict integer partition of n. A323522

Consecutive states of the linear congruential pseudo-random number generator (25173·s+13849) mod 2¹⁶ when started at s=1. A383940

Arrange digits of cubes in descending order. A32554

Number of digits in n-th Fermat number (A000215). A57755

Right edge of triangle A297497. A297498