Properties of the Number -651997

Six Hundred Fifty-One Thousand Nine Hundred Ninety-Seven

Basics

Value: -651998 → -651997 → -651996

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 651997

Divisors: 1, 651997

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -10011111001011011101

Octal: -2371335

Duodecimal: -275391

Hexadecimal: -9f2dd

Square: 425100088009

Square Root: 807.4633118600498

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(0)=-4, a(1)=5; thereafter a(n) = 2·a(n-1) + a(n-2). A221174

Consider all Pythagorean triples (X,X+7,Z); sequence gives Z values. A76294

Consider Pythagorean triples which satisfy X²+(X+7)²=Z²; sequence gives increasing values of Z. A60569

Part of the positive proper solutions y of the Pell equation x² - 2·y² = - 7² based on the fundamental solution (x0, y0)= (1, 5). A254759