Properties of the Number -861841

Eight Hundred Sixty-One Thousand Eight Hundred Forty-One

Basics

Value: -861842 → -861841 → -861840

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 37 × 23293

Divisors: 1, 37, 23293, 861841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -11010010011010010001

Octal: -3223221

Duodecimal: -356901

Hexadecimal: -d2691

Square: 742769909281

Square Root: 928.3539195802429

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

Numbers n such that n = concat(a,b) and n = φ(n) + φ(a) + φ(b), with a>0 and b>0, where φ(n) is the Euler totient function of n. A258319

Number of nX3 1..3 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nonincreasing order. A166831