Properties of the Number -221824

Two Hundred Twenty-One Thousand Eight Hundred Twenty-Four

Basics

Value: -221825 → -221824 → -221823

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁷ × 1733

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 1733, 3466

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -110110001010000000

Octal: -661200

Duodecimal: -A8454

Hexadecimal: -36280

Square: 49205886976

Square Root: 470.98195294512084

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) = n! - n⁶. A196413

n^k - n! where n^k > n! >= n^k-1. A111683

Difference between 2ⁿ and the largest factorial <= 2ⁿ. A135996

Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A259001

Expansion of e.g.f. exp(1/theta₄(x) - 1), where theta₄() is the Jacobi θ function. A320899