Properties of the Number -87149

Eighty-Seven Thousand One Hundred Forty-Nine

Basics

Value: -87150 → -87149 → -87148

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 87149

Divisors: 1, 87149

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10101010001101101

Octal: -252155

Duodecimal: -42525

Hexadecimal: -1546d

Square: 7594948201

Square Root: 295.2100946783494

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 ∑_i=1..n 1/(i·C(2·i,i)). A112099

Numerators of partial sums for a series for 2*π*sqrt(3)/9. A130553

The number of palindromic primes leading and ending with 1, 3, 7 or 9 -- in sequence -- of length 2·ceiling(n/4)+1. A220248

Number of length 4 1..(n+2) arrays with no leading partial sum equal to a prime. A254542