Properties of the Number -256121

Two Hundred Fifty-Six Thousand One Hundred Twenty-One

Basics

Value: -256122 → -256121 → -256120

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 256121

Divisors: 1, 256121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -111110100001111001

Octal: -764171

Duodecimal: -104275

Hexadecimal: -3e879

Square: 65597966641

Square Root: 506.0839851249988

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

Place n equally spaced points around the circumference of a circle and then, for each pair of points, draw two distinct circles, whose radii are the same as the first circle, such that both points lie on their circumferences. The sequence gives the total number of regions formed. A371374

Prime numbers of the form (x³)/2+(3x²)/2+3x+3. A127874

a(n) is the first prime p such that the concatenations of n consecutive primes, starting with p, in both forward and backward directions, are prime. A384958