Properties of the Number 99220

Ninety-Nine Thousand Two Hundred Twenty

Basics

Value: 99219 → 99220 → 99221

Parity: even

Prime: No

Previous Prime: 99191

Next Prime: 99223

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 11 ² × 41

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 41, 44

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000001110010100

Octal: 301624

Duodecimal: 49504

Hexadecimal: 18394

Square: 9844608400

Square Root: 314.9920633920798

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

Numbers k such that if k = a·b, then a+b = reversal(k) for some integers a,b > 1. A161791

Number of 0..2 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1. A171308

Number of 0..n-1 integer arrays v[1..15] of length 15 with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..14. A171366

T(n,m) = number of 0..m-1 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1. A171307

Decimal expansion of Li₆(1/2). A99220