Properties of the Number 99865

Ninety-Nine Thousand Eight Hundred Sixty-Five

Basics

Value: 99864 → 99865 → 99866

Parity: odd

Prime: No

Previous Prime: 99859

Next Prime: 99871

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 5 × 19973

Divisors: 1, 5, 19973, 99865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011000011001

Octal: 303031

Duodecimal: 49961

Hexadecimal: 18619

Square: 9973018225

Square Root: 316.0142401854701

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) = ceiling(2ⁿ/n). A53638

4-step Fibonacci sequence starting with 1,1,0,0. A251703

Expansion of (1-x)^-1/(1 + x - x² + 2·x³). A77903

Number of upper Wythoff primes (A095281) in range ]2ⁿ,2ⁿ⁺¹]. A95291

Numerator of sum of all elements M(i,j,k) = i·j/k, (i,j,k = 1..n). a(n) = Numerator[Sum[Sum[Sum[i·j/k,{i,1,n}],{j,1,n}],{k,1,n}]]. A99865