Properties of the Number -111111111111111

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

Basics

Value: -111111111111112 → -111111111111111 → -111111111111110

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: Yes

Factorization: 3 × 31 × 37 × 41 × 271 × 2906161

Divisors: 1, 3, 31, 37, 41, 93, 111, 123, 271, 813

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11001010000111000010010010011101111000111000111

Octal: -3120702223570707

Duodecimal: -105660B236A773

Hexadecimal: -650e124ef1c7

Square: 12345679012345654320987654321

Square Root: 10540925.533894593

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

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

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

a(n) = ∑_j=0..14 n^j. A104682

a(1) = 1; a(n) = smallest palindromic number of the form k·a(n-1) + 1 with k > 1. A69505

a(1) = 2; a(n) = smallest palindromic number of the form k·a(n-1) + 1 with k > 1. A69506

a(1) = 4; a(n) = smallest palindromic number of the form k·a(n-1) + 1 with k > 1. A69507

a(1) = 6; a(n) = smallest palindromic number of the form k·a(n-1) + 1 with k > 1. A69508