Properties of the Number -16290

Sixteen Thousand Two Hundred Ninety

Basics

Value: -16291 → -16290 → -16289

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 181

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111110100010

Octal: -37642

Duodecimal: -9516

Hexadecimal: -3fa2

Square: 265364100

Square Root: 127.63228431709588

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) = p*(p-1)/2 for p = prime(n). A8837

Coefficients of a special case of Poisson-Charlier polynomials. A46716

Number of ways of writing n as the sum of 10 triangular numbers from A000217. A226254

Numbers k such that the symmetric representation of σ(k) has only two parts and they meet at the center of the Dyck path. A262259

a(n) = 5ⁿ + 3ⁿ - 2ⁿ. A135160

a(n) = 5·n*(5·n + 1)/2. A144312

Triangular numbers which have one or more occurrences of exactly five different digits. A241788

a(n) = 3·n*(6·n + 1). A144314

Number of (w,x,y,z) with all terms in {1,...,n} and |w-x| >= w + |y-z|. A212714

Sixth partial sums of fifth powers (A000584). A254471