Properties of the Number -405720

Four Hundred Five Thousand Seven Hundred Twenty

Basics

Value: -405721 → -405720 → -405719

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 5 × 7 ² × 23

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100011000011011000

Octal: -1430330

Duodecimal: -176960

Hexadecimal: -630d8

Square: 164608718400

Square Root: 636.9615373003303

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

Numbers with prime factorization pqr^2s^2t³. A190386

T(n, k) = [x^k] n! [tⁿ] 1/(exp((V*(2 - 2·t + V))/(4·t))*sqrt(1 + V)) where V = W(-2·t*x) and W denotes the Lambert function. Table read by rows, T(n, k) for 0 <= k <= n. A343807

Coordination sequence for E₆ lattice. A8399

Number of 2 X 2 matrices with entries in {0,1,...,n} and even determinant with no entry repeated. A277044