Properties of the Number 16562

Sixteen Thousand Five Hundred Sixty-Two

Basics

Value: 16561 → 16562 → 16563

Parity: even

Prime: No

Previous Prime: 16561

Next Prime: 16567

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 7 ² × 13 ²

Divisors: 1, 2, 7, 13, 14, 26, 49, 91, 98, 169

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000010110010

Octal: 40262

Duodecimal: 9702

Hexadecimal: 40b2

Square: 274299844

Square Root: 128.69343417595164

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

Spt function: total number of smallest parts (counted with multiplicity) in all partitions of n. A92269

Number of integer partitions of n that can be partitioned into distinct pairs of (possibly equal) parts. A338916

a(n) = n²*(n+1)²/2. A163102

Palindromic numbers in bases 6 and 9 written in base 10. A259389

T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222986

Numbers that are the sum of 3 nonzero 4th powers in more than one way. A309762

Numbers that are the sum of three fourth powers in exactly two ways. A344192

Sum of terms in n-th row of A077164. A77167

Sophie Germain 5-almost primes. A211162

a(n) = (2·n²*(n² - 3) - (2·n² + 1)*(-1)ⁿ + 1)/64. A302647