Properties of the Number -13020

Thirteen Thousand Twenty

Basics

Value: -13021 → -13020 → -13019

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 7 × 31

Divisors: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -11001011011100

Octal: -31334

Duodecimal: -7650

Hexadecimal: -32dc

Square: 169520400

Square Root: 114.1052146047673

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

Triangle of coefficients T(n,k) in g.f. A(x,y) satisfying ∑_n=-oo..+oo (-1)ⁿ * (xⁿ + y·A(x,y))ⁿ = 1 + (y+2)*∑_n>=1 (-1)ⁿ * x^n², for n >= 1, as read by rows. A370040

Numbers k such that k⁶ + 1091 is prime. A66386

Numbers whose set of base 5 digits is {0,4}. A97251

Number of crossing, nesting set partitions of {1..n}. A326248

Numbers k such that σ (x) = k has exactly 11 solutions. A60678

Number of closed walks of length n on the complete graph on 6 nodes from a given node. A109500

Number of n-step walks on square lattice in the first quadrant which finish at distance n-3 from the x-axis. A5564

a(n) = lcm_d∣n σ(d). A69934

Number of ways to write n as an ordered sum of 9 squares of positive integers. A340946

Expansion of ∏_k>=1 (1 + x^k + x^3·k). A264905