Properties of the Number -139997

One Hundred Thirty-Nine Thousand Nine Hundred Ninety-Seven

Basics

Value: -139998 → -139997 → -139996

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 11 ² × 13 × 89

Divisors: 1, 11, 13, 89, 121, 143, 979, 1157, 1573, 10769

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010001011011101

Octal: -421335

Duodecimal: -69025

Hexadecimal: -222dd

Square: 19599160009

Square Root: 374.16172973728885

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

Number of distributive lattices; also number of paths with n turns when light is reflected from 4 glass plates. A6357

4-wave sequence. A38197

Number of ways to split an n-cycle into connected subgraphs, all having at least three vertices. A323951

Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p₁, p₂, p₃, p₄} = {-1,0,1,2}, n=3·r+p_i, and define a(-1)=1. Then a(n)=a(3·r+p_i) gives the quantity of H_9,1,0 tiles in a subdivided H_9,i,r tile after linear scaling by the factor Q^r, where Q=sqrt(x³-2·x) with x=2·cos(π/9). A187503

Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p₁, p₂, p₃, p₄} = {-1,0,1,2}, n=3·r+p_i, and define a(-1)=0. Then a(n)=a(3·r+p_i) gives the quantity of H_9,4,0 tiles in a subdivided H_9,i,r tile after linear scaling by the factor Q^r, where Q=sqrt(x³-2·x) with x=2·cos(π/9). A187506

Expansion of x - 1/(x - 1/(x - 1/(x - 1/(x + 1)))). A373568

Top line of 4-wave sequence A038197, also bisection of A006357. A38225