Properties of the Number -280409

Two Hundred Eighty Thousand Four Hundred Nine

Basics

Value: -280410 → -280409 → -280408

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 280409

Divisors: 1, 280409

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000100011101011001

Octal: -1043531

Duodecimal: -116335

Hexadecimal: -44759

Square: 78629207281

Square Root: 529.5365898594732

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

Let P1>3, P2, P3, P4 be 4 consecutive primes with P3-P2 = 2. a(n) = P2 is the earliest occurrence of the 4-tuple with min(P2-P1, P4-P3) = 2·n, or 0 if no such constellation exists. A347280

G.f. A(x) satisfies A(x) = (1 + x·A(x))²/(1 - x·A(x)³). A379194