Properties of the Number 16280

Sixteen Thousand Two Hundred Eighty

Basics

Value: 16279 → 16280 → 16281

Parity: even

Prime: No

Previous Prime: 16273

Next Prime: 16301

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 11 × 37

Divisors: 1, 2, 4, 5, 8, 10, 11, 20, 22, 37

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111110011000

Octal: 37630

Duodecimal: 9508

Hexadecimal: 3f98

Square: 265038400

Square Root: 127.59310326189265

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

Expansion of ∏_k>=1 (1 - x^8·k)/(1 - x^k). A261775

Even octagonal numbers: a(n) = 4·n*(3·n-1). A14642

a(n) = (n!)³ * ∑_i=1..n 1/i³. A66989

Square array A(n,k), n>=0, k>=0, read by antidiagonals: A(n,k) = (n!)^k * ∑_i=1..n 1/i^k. A291556

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A237463

a(n) = dot_product(1,2,...,n)*(3,4,...,n,1,2). A26037

Sums of 4 distinct powers of 5. A38476

a(n) = ( (4 + sqrt(7))ⁿ - (4 - sqrt(7))ⁿ )/(2·sqrt(7)). A154245

Triangle, read by rows, with row n forming the coefficients in ∏_k=0..n (1 + k³*x). A249677

Triangle read by rows, Stirling cycle numbers of order 3, T(n,n) = 1, T(n,k) = 0 if k<0 or k>n, otherwise T(n,k) = T(n-1,k-1)+(n-1)³*T(n-1,k), for n>=0 and 0<=k<=n. A269947