Properties of the Number -2013

Thirteen

Basics

Value: -2014 → -2013 → -2012

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 61

Divisors: 1, 3, 11, 33, 61, 183, 671, 2013

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11111011101

Octal: -3735

Duodecimal: -11B9

Hexadecimal: -7dd

Square: 4052169

Square Root: 44.86646854834911

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 k such that k, k+1 and k+2 have the same number of divisors. A5238

Number of partitions of n having depth 1; see Comments. A237685

Trajectory of 82 under the map n-> A006368(n). A223088

a(n) = 2·n² + 11·n + 12. A71355

Numbers whose digits are a permutation of [0,...,n] and which contain the product of any two adjacent digits as a substring. A203569

a(n) is the first of a triple of consecutive integers, each of which is the product of three distinct primes. A66509

Numbers n with prime signature(n) = prime signature(n+1) = prime signature(n+2). A52214

T(n,k)=Number of nonnegative integer arrays of length n+2k+1 with new values 0 upwards introduced in order, no three adjacent elements all unequal, and containing the value k+1. A211849

T(n,k) = Number of n X k 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303182

Number of widely totally strongly normal compositions of n. A332337