Properties of the Number -145607

One Hundred Forty-Five Thousand Six Hundred Seven

Basics

Value: -145608 → -145607 → -145606

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 11 × 31 × 61

Divisors: 1, 7, 11, 31, 61, 77, 217, 341, 427, 671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -100011100011000111

Octal: -434307

Duodecimal: -7031B

Hexadecimal: -238c7

Square: 21201398449

Square Root: 381.58485294885594

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 p = n-th prime == 3 mod 8; a(n) = (sum of quadratic residues mod p that are < p/2) + (sum of all quadratic residues mod p). A282727

Number of irredundant sets in the n-crown graph. A290710