Properties of the Number 19853

Nineteen Thousand Eight Hundred Fifty-Three

Basics

Value: 19852 → 19853 → 19854

Parity: odd

Prime: Yes

Previous Prime: 19843

Next Prime: 19861

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 19853

Divisors: 1, 19853

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110110001101

Octal: 46615

Duodecimal: B5A5

Hexadecimal: 4d8d

Square: 394141609

Square Root: 140.90067423543437

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

Balanced primes of order four. A82079

Primes p such that p² + 4 and p² + 10 are also primes. A237890

Non-palindromic balanced primes. A256076

Primes that remain prime through 3 iterations of function f(x) = 9x + 4. A23297

a(n) = 12·n² - 8·n + 9. A167585

Number of parts in all partitions of n with largest multiplicity eight. A320378

a(n) = n·A340339(n)+b, where b = 1 if n is even or 2 if n is odd. A340340

Numbers k such that the continued fraction for sqrt(k) has period 81. A20420

Primes p = prime(k) such that prime(k) + prime(k+7) = prime(k+1) + prime(k+6) = prime(k+2) + prime(k+5) = prime(k+3) + prime(k+4). A64102

Indices of primes in sequence defined by A(0) = 39, A(n) = 10·A(n-1) - 1 for n > 0. A101847