Properties of the Number -8881

Eight Hundred Eighty-One

Basics

Value: -8882 → -8881 → -8880

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 83 × 107

Divisors: 1, 83, 107, 8881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001010110001

Octal: -21261

Duodecimal: -5181

Hexadecimal: -22b1

Square: 78872161

Square Root: 94.23905772024676

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 k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811

Numbers that are the sum of 10 positive 7th powers. A3377

Number of integer compositions of n whose leaders of weakly increasing runs are strictly increasing. A374634

a(1) = 1; a(n) = max{ 5·a(k) + a(n-k) | 1 <= k <= n/2 } for n > 1. A130667

a(n) is the smallest b > 1 such that p = prime(n) satisfies b^p-1 == 1 (mod p³). A249275

Least power of 3 having exactly n consecutive 6's in its decimal representation. A131547

For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k². This is k(9). A237346

Numbers in which 8 outnumbers all other digits together. A292738

a(n) = n³ + 2·n² + 4·n + 1. A270867

Array read by antidiagonals: T(m,n) = number of independent vertex sets in the complete prism graph K_m X C_n. A287376