Properties of the Number -1597

Five Hundred Ninety-Seven

Basics

Value: -1598 → -1597 → -1596

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 1597

Divisors: 1, 1597

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11000111101

Octal: -3075

Duodecimal: -B11

Hexadecimal: -63d

Square: 2550409

Square Root: 39.96248240537617

Classification

Fibonacci: Yes

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) = a(n-1)+a(n-2), n>1 ; a(0)=1, a(1)=-1. A152163

An inverse Catalan transform of Fibonacci(2n). A100334

Expansion of (1-x)*(1-x+x²)/(1-3·x+4·x²-2·x³+x⁴). A105371

a(n) = -n² + 9·n + 23. A126719

a(n)=3a(n-1)-4a(n-2)+2a(n-3)-a(n-4), a(0)=a(1)=a(2)=0, a(3)=1, a(4)=3. A138112

Dirichlet inverse of Fibonacci numbers, when started from A000045(1): 1, 1, 2, 3, 5, 8, 13, 21, ... A349451

Triangle read by rows: matrix inverse of A110877. A126126

A transform of the Fibonacci numbers. A99843

a(n+4) = a(n+3) - 2·a(n+2) - a(n+1) - a(n). A173343

Expansion of (1-x)/(1+2·x²+x³). A78036