Properties of the Number 16563

Sixteen Thousand Five Hundred Sixty-Three

Basics

Value: 16562 → 16563 → 16564

Parity: odd

Prime: No

Previous Prime: 16561

Next Prime: 16567

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5521

Divisors: 1, 3, 5521, 16563

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 100000010110011

Octal: 40263

Duodecimal: 9703

Hexadecimal: 40b3

Square: 274332969

Square Root: 128.69731931940152

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 that are the sum of 4 nonzero 4th powers in more than one way. A309763

Numbers that are the sum of four fourth powers in exactly two ways. A344193

Expansion of 1/((1-x)³*(1-x²)²*(1-x³)). A2625

Least positive integer multiples of angle·such that their direction cosines form a unit vector: ∑_k>0 cos(a(k)*x)² = 1, where a(1)=1 and x=3. A80138

Number of sets of nonempty words with a total of n letters over ternary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter. A293742

Semiprimes of the form 2·n + 1, where n is a square. A111351

a(n) = ∑_k=1..n-1 σ(k) * sigma₂(n-k). A374974

Number of even-length integer partitions of n with integer median. A361653

Numbers whose trajectory under the Esucarys map ends at the fixed point 247. A129133

An eighth of the product of three integers surrounding the (n+1)-st prime, minus half of the product of the 3 numbers surrounding n+1. A141535