Properties of the Number -1616

Six Hundred Sixteen

Basics

Value: -1617 → -1616 → -1615

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 101

Divisors: 1, 2, 4, 8, 16, 101, 202, 404, 808, 1616

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11001010000

Octal: -3120

Duodecimal: -B28

Hexadecimal: -650

Square: 2611456

Square Root: 40.19950248448356

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.: (1 - x/(1 - x²/(1 - x³/(1 - x⁴/(1 - ...))))) / (1 + x/(1 + x²/(1 + x³/(1 + x⁴/(1 + ...))))), a continued fraction. A285635

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 185", based on the 5-celled von Neumann neighborhood. A270637

Doublets: base-10 representation is the juxtaposition of two identical strings. A20338

Number of integer partitions of n with an alternating permutation. A345170

Generalized 14-gonal numbers: m*(6·m-5), m = 0,+1,-1,+2,-2,+3,-3,... A195818

a(n) = (3·n² - n - 2)/2. A115067

Product of the 4th power of a prime (A030514) and a different prime (p⁴*q). A178739

Multiples of 16 containing a 16 in their decimal representation. A121036

Number of integer partitions of n with integer alternating product. A347446

a(n) = n*(n²+3·n-1)/3. A84990