Properties of the Number -11111111111

Eleven Billion One Hundred Eleven Million One Hundred Eleven Thousand One Hundred Eleven

Basics

Value: -11111111112 → -11111111111 → -11111111110

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: Yes

Factorization: 21649 × 513239

Divisors: 1, 21649, 513239, 11111111111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010010110010001100001100111000111

Octal: -122621414707

Duodecimal: -21A110919B

Hexadecimal: -2964619c7

Square: 123456790120987654321

Square Root: 105409.25533841894

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

Repunits: (10ⁿ - 1)/9. Often denoted by R_n. A2275

Unary representation of natural numbers. A42

1 repeated prime(n) times. A31974

The sequence S = a(1), a(2), ... is defined by a(1)=1, if d,e,f are consecutive digits then we do not have d >= e < f, and S is always extended with the smallest integer not yet present in S. A239090

a(n) = ∑_k=0..n n^k. A31973

a(n) = ∑_j=0..10 n^j. A60885

Bisection of A002275. A100706

Numbers n with property that for each single digit d of n, we can also see the decimal expansions of d² and d³ as substrings of n. Also n may not contain any 0 digits. A135463

Cyclotomic polynomials at x=10. A19328

Sums of 11 distinct powers of 10. A38453