Properties of the Number 16860

Sixteen Thousand Eight Hundred Sixty

Basics

Value: 16859 → 16860 → 16861

Parity: even

Prime: No

Previous Prime: 16843

Next Prime: 16871

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 281

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000111011100

Octal: 40734

Duodecimal: 9910

Hexadecimal: 41dc

Square: 284259600

Square Root: 129.84606270503545

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

a(n) + a(n+1) + a(n+2) = n³. A152728

T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280284

Number of partitions of [n] whose block maxima sum to 2n. A368675

a(n) = round(n*φ¹⁴), where φ is the golden ratio, A001622. A4949

63-gonal numbers: a(n) = n*(61·n - 59)/2. A98140

Number of n X 3 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280280

Number of nX4 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280281

Numbers such that the two numbers before and the two numbers after are squarefree semiprimes. A358666

a(n) = ceiling(n*φ¹⁴), where φ is the golden ratio, A001622. A4969

Triangle read by rows: coefficients of the polynomial (∑_i=0..k (∏_j=0..i (x+j)))/(x*(x+2)). A270250