Properties of the Number 19822

Nineteen Thousand Eight Hundred Twenty-Two

Basics

Value: 19821 → 19822 → 19823

Parity: even

Prime: No

Previous Prime: 19819

Next Prime: 19841

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 17 × 53

Divisors: 1, 2, 11, 17, 22, 34, 53, 106, 187, 374

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100110101101110

Octal: 46556

Duodecimal: B57A

Hexadecimal: 4d6e

Square: 392911684

Square Root: 140.79062468786762

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

Number of integer partitions of n whose weak run-sums cover an initial interval of nonnegative integers. A353863

a(n) is the number of binary (0,1) sequences of length n that have at most two zeros in a window of seven consecutive symbols. A334251

n times the n-th prime is made of nontrivial runs of identical digits. A116058

Start with a(1) = 1, a(2) = 1, then a(n)*3^k = a(n+1) + a(n+2), with 3^k the smallest power of 3 (k>0) such that all terms a(n) are positive integers. A233525

Expansion of f(-x², -x¹⁰) / f(-x, -x) in powers of·where f(, ) is Ramanujan's general θ function. A262984

Number of length n arrays of permutations of 0..n-1 with each element moved by -8 to 8 places and the average of every three consecutive elements is never greater than the median of the previous three elements. A263734

Decimal expansion of sine of 13 degrees. A19822