Properties of the Number 99864

Ninety-Nine Thousand Eight Hundred Sixty-Four

Basics

Value: 99863 → 99864 → 99865

Parity: even

Prime: No

Previous Prime: 99859

Next Prime: 99871

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 19 × 73

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000011000011000

Octal: 303030

Duodecimal: 49960

Hexadecimal: 18618

Square: 9972818496

Square Root: 316.0126579743286

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) = floor(2ⁿ / n). A799

a(n) = floor of (2ⁿ-1)/n. A82482

a(n) = round( 2ⁿ/n ). A65482

Structured truncated tetrahedral numbers. A100156

Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having a sum of two or less, with rows and columns of the latter in lexicographically nondecreasing order. A227259

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 79. A31757

Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,0. A37505

Indices of the primes used in A099863, which is a permutation of the odd primes that satisfies the condition that the sequence modulo 2ⁿ has period 2^n-1 for all n>0, where the least unused primes are chosen in the process. A99864