Properties of the Number -665215

Six Hundred Sixty-Five Thousand Two Hundred Fifteen

Basics

Value: -665216 → -665215 → -665214

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 233 × 571

Divisors: 1, 5, 233, 571, 1165, 2855, 133043, 665215

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -10100010011001111111

Octal: -2423177

Duodecimal: -280B67

Hexadecimal: -a267f

Square: 442510996225

Square Root: 815.607135819691

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

In the '3x+1' problem, these values for the starting value set new records for highest point of trajectory before reaching 1. A6884

G.f. A(x) equals the limit of the composition of functions (x+xⁿ) in reverse order; let F₁(x) = x, F_n+1(x) = F_n(x) + F_n(x)ⁿ⁺¹, then A(x) = limit F_n(x): A(x) = ...o x+xⁿ o ... o x+x³ o x+x² o x. A119471

Least number whose Collatz 3x+1 trajectory contains a number >= 2ⁿ. A222292

Denominators of continued fraction convergents to sqrt(794). A42531

Smallest number which requires n² steps in the 3x+1 problem. A66773