Properties of the Number -405000

Four Hundred Five Thousand

Basics

Value: -405001 → -405000 → -404999

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ⁴ × 5 ⁴

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100010111000001000

Octal: -1427010

Duodecimal: -176460

Hexadecimal: -62e08

Square: 164025000000

Square Root: 636.3961030678928

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Number of solutions to gcd(x² + y² + z² + t² + h², n) = 1 with x,y,z,t,h in [0,n-1]. A238533

a(n) = ceiling((n+1)⁴/2). A171714

a(n) = n + (n+1)² + (n+2)³ + (n+3)⁴. A27621

Number of 2 X 2 matrices with all terms in {0,1,...,n} and even trace. A210378

Number of 2 X 2 matrices with all terms in {0,1,...,n} and odd trace. A210379

a(n) = n*(n-1)⁴/2. A19583

a(n) = ∏_{d∣n, d>1} prime(A286622(d)-1). A305794

Smallest order for which there are n nonisomorphic finite Hamiltonian groups, or 0 if no such order exists. A104453

Number of compositions of odd natural numbers into 4 parts <= n. A191903

Larger of pairs (m, n), such that the difference of their squares is a cube and the difference of their cubes is a square. A261328