Properties of the Number -189728

One Hundred Eighty-Nine Thousand Seven Hundred Twenty-Eight

Basics

Value: -189729 → -189728 → -189727

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 7 ² × 11 ²

Divisors: 1, 2, 4, 7, 8, 11, 14, 16, 22, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -101110010100100000

Octal: -562440

Duodecimal: -91968

Hexadecimal: -2e520

Square: 35996713984

Square Root: 435.57777721091327

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

a(n) = numerator of r(n): r(n) is such that the continued fraction (of rational terms) [r(1);r(2),...,r(n)] = n², for every positive integer n. A128560

Numbers k such that the harmonic mean of the divisors of k is the square of a rational number. A74266

Indecomposable σ-powerful numbers: powerful numbers k such that σ(k) is also powerful, but restricted to terms that are not the product of 2 terms > 1 of A337044. A337045

Numbers k such that both k and σ(k)=A000203(k) are powerful, i.e., are terms of A001694. A337044

Powerful numbers (A001694) whose sum of powerful divisors (including 1) is also powerful. A349109

a(n) = n*(n+1)*(n+7)*(122+57·n+n²)/120. A101862

Numbers with prime factorization p²*q²*r⁵ where p, q, and r are distinct primes. A190114