Properties of the Number -219450

Two Hundred Nineteen Thousand Four Hundred Fifty

Basics

Value: -219451 → -219450 → -219449

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 ² × 7 × 11 × 19

Divisors: 1, 2, 3, 5, 6, 7, 10, 11, 14, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101100100111010

Octal: -654472

Duodecimal: -A6BB6

Hexadecimal: -3593a

Square: 48158302500

Square Root: 468.45490711486843

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 read by rows, the Bell transform of the quartic factorial numbers A007696(n+1) without column 0. A49029

Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=11. A135196

a(n) = n*(2·n-1)*(2·n+1). A35328

Triangle T(n,m)= ∑_i=0..n L'(n,i)*∏_j=1..m (i-j+1), read by rows. A59114

Numbers k such that φ(k) < k/5. A66765

Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y>3z. A212514

Smallest fixed points (>0) of the base-2·n Kaprekar map. A319839

Numbers with a record number of deficient divisors. A335542

Triangle, read by rows, T(n, k) = ∑_j=0..k (n+k)!/((n-j)!*(k-j)!*j!). A176080