Properties of the Number -3828

Eight Hundred Twenty-Eight

Basics

Value: -3829 → -3828 → -3827

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 11 × 29

Divisors: 1, 2, 3, 4, 6, 11, 12, 22, 29, 33

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -111011110100

Octal: -7364

Duodecimal: -2270

Hexadecimal: -ef4

Square: 14653584

Square Root: 61.87083319303208

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

Expansion of 6-dimensional cusp form (η(q) * η(q³))⁶ in powers of q. A7332

Triangle formed from expansion of (x-1)*(x+2)*(x-3)*...*(x+-n). A47991

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min{i(j+1),j(i+1)} (A203996). A203997

Triangle read by rows: coefficients of the alternating factorial polynomial (x+1)(x-2)(x+3)(x-4)...(x+n*(-1)^n-1). A140956

Hexagonal numbers: a(n) = n*(2·n-1). A384

Balanced numbers: numbers k such that φ(k) (A000010) divides σ(k) (A000203). A20492

a(n) = n!*(1 - 1/2 + 1/3 - ... + c/n), where c = (-1)ⁿ⁺¹. A24167

Number of partitions of n in which the greatest part is 8. A26814

Numbers k such that the geometric mean of φ(k) and σ(k) is an integer. A11257

a(n) = 2·n*(4·n - 1). A14635