Properties of the Number -16280

Sixteen Thousand Two Hundred Eighty

Basics

Value: -16281 → -16280 → -16279

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

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

Today's Target

7925 Try Today's Challenge

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

∏_n>=1 (1 + xⁿ)^a(n) = 1 + ∑_n>=1 prime(n+1) * xⁿ. A353160

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