Properties of the Number -280001

Two Hundred Eighty Thousand One

Basics

Value: -280002 → -280001 → -280000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 280001

Divisors: 1, 280001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -1000100010111000001

Octal: -1042701

Duodecimal: -116055

Hexadecimal: -445c1

Square: 78400560001

Square Root: 529.151207123257

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

Primes of the form 2^a * 5^b * 7^c + 1 for positive a, b, c. A114992

G.f.: (1+38·x+262·x²+475·x³+254·x⁴+37·x⁵+x⁶)/(1-x)⁷. A160837