Properties of the Number -1001001001

One Million One Thousand One

Basics

Value: -1001001002 → -1001001001 → -1001001000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 4

Digital Root: 4

Palindrome: Yes

Factorization: 7 × 11 × 13 × 101 × 9901

Divisors: 1, 7, 11, 13, 77, 91, 101, 143, 707, 1001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: -111011101010100001000000101001

Octal: -7352410051

Duodecimal: -23B296BA1

Hexadecimal: -3baa1029

Square: 1002003004003002001

Square Root: 31638.599858400812

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

Numbers of the form (10^m·r-1)/(10^r-1) for positive integers m, r. A76289

a(n) = ∑_k=0..n 1000^k. A261544

Binary representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 846", based on the 5-celled von Neumann neighborhood. A290552

Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 1,0,0. A33146

Palindromes of even length only using 0 or 1. A342036

Palindromes i such that 2·i² is a palindrome. A256495

Palindromes whose digit sum is 4. A65983

Palindromes of the form n³ + n² + n + 1. A86143