Properties of the Number -131225

One Hundred Thirty-One Thousand Two Hundred Twenty-Five

Basics

Value: -131226 → -131225 → -131224

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 29 × 181

Divisors: 1, 5, 25, 29, 145, 181, 725, 905, 4525, 5249

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -100000000010011001

Octal: -400231

Duodecimal: -63B35

Hexadecimal: -20099

Square: 17220000625

Square Root: 362.2499137335991

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

a(n) = (2ⁿ⁺¹ + n² + n)/2. A132109

Triangle read by rows: CP(n,i) for n>=0 and 3n+1 >= i >= 0, gives the absolute value of the coefficients of the chromatic polynomial of C₃ X P_n+1 factored in the form x(x-1)ⁱ. A123531