Properties of the Number -401880

Four Hundred One Thousand Eight Hundred Eighty

Basics

Value: -401881 → -401880 → -401879

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 17 × 197

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: -1100010000111011000

Octal: -1420730

Duodecimal: -1746A0

Hexadecimal: -621d8

Square: 161507534400

Square Root: 633.9400602580657

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) = 2·a(n-1) + 2·a(n-3) + a(n-4), with a(0)=1, a(1)=2, a(3)=4, a(4)=10. A89928

Numbers n such that n² + n(n+1) is an oblong number (A002378). A220185

2·A084158 (twice Pell triangles). A114620