Properties of the Number -106721

One Hundred Six Thousand Seven Hundred Twenty-One

Basics

Value: -106722 → -106721 → -106720

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 106721

Divisors: 1, 106721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11010000011100001

Octal: -320341

Duodecimal: -51915

Hexadecimal: -1a0e1

Square: 11389371841

Square Root: 326.6818023704412

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

Ascending descending base exponent transform of triangular numbers (A000217). A113231

Number of subsequences of {1..n} such that all differences of pairs of terms are distinct (i.e., number of Golomb rulers on {1..n}). A54578

Primes equal to a product of twin primes minus 1 divided by 2. A86870

(Product of twin primes - 1)/2. A120876

a(n) = 128·n² + 2528·n + 12481. A157436

a(n) = 128·n² - 32·n + 1. A157331

Primes in A128490. A128491

Primes in A166448. A166449

Emirps whose binary conversion remains emirp when read in decimal. A226972

Numbers k such that A155085(k) is in A037074. A352616