Properties of the Number -181920

One Hundred Eighty-One Thousand Nine Hundred Twenty

Basics

Value: -181921 → -181920 → -181919

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁵ × 3 × 5 × 379

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -101100011010100000

Octal: -543240

Duodecimal: -89340

Hexadecimal: -2c6a0

Square: 33094886400

Square Root: 426.5208084021224

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

Decimal concatenation of n, n+1, and n+2. A1703

Concatenate the consecutive increasing numbers starting with Harshad(n) and ending with Harshad(n+1). A112131

List the positive integers but erase commas between terms if the digits just before and just after the comma have opposite parity. A367595

Duplicate of A001703. A127422