Properties of the Number -16087

Sixteen Thousand Eighty-Seven

Basics

Value: -16088 → -16087 → -16086

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 16087

Divisors: 1, 16087

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111011010111

Octal: -37327

Duodecimal: -9387

Hexadecimal: -3ed7

Square: 258791569

Square Root: 126.83453788302302

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

G.f.: 2 - x/(1+2·x - x³/(1+2·x² - x⁵/(1+2·x³ - x⁷/(1+2·x⁴ - x⁹/(1+2·x⁵ - x¹¹/(1 - ...)))))), a continued fraction. A275762

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[4, 6,6]; short d-string notation of pattern = [466]. A78852

Number of forests with n nodes and height at most 4. A951

The hafnian of a symmetric Toeplitz matrix of order 2·n, n>=2 with the first row (0,1,2,...,2,0); a(0)=a(1)=1. A336286

Triangle read by rows: T(n,k) = number of forests of labeled rooted trees with n nodes and height at most k (n>=1, 0<=k<=n-1). A210725

Primes p such that p+1, p+2 and p+3 have equal number of divisors. A119711

a(1) = 1, a(n) = the smallest prime divisor of A138793(n). A138962

a(n) = 9·n² - 13·n + 5. A214675

Number of partitions of n into 8 or more distinct parts. A347575

Augmentation of the triangle A193605. See Comments. A193606