Properties of the Number -830139

Eight Hundred Thirty Thousand One Hundred Thirty-Nine

Basics

Value: -830140 → -830139 → -830138

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 23 × 53 × 227

Divisors: 1, 3, 23, 53, 69, 159, 227, 681, 1219, 3657

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11001010101010111011

Octal: -3125273

Duodecimal: -3404A3

Hexadecimal: -caabb

Square: 689130759321

Square Root: 911.1196408814816

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

Numerator of the n-th harmonic number H(n) divided by (n+1); a(n) = A001008(n) / ((n+1)*A002805(n)). A2547

a(n) is the numerator of the asymptotic density of numbers divisible by their last digit in base n. A341431

a(n) = numerator( (-1)^n-1*H(2·n)/(2·n + 1) ), where H(n) is the n-th harmonic number. A392689

Largest squarefree number dividing the numerator of harmonic number H(n). A382213