Properties of the Number -6815

Eight Hundred Fifteen

Basics

Value: -6816 → -6815 → -6814

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 29 × 47

Divisors: 1, 5, 29, 47, 145, 235, 1363, 6815

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1101010011111

Octal: -15237

Duodecimal: -3B3B

Hexadecimal: -1a9f

Square: 46444225

Square Root: 82.55301327026167

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

Number of Look-and-Say partitions of n; see Comments. A239455

Sum of the smallest parts of the partitions of 4n into 4 parts. A238702

a(n) = n*(3·n + 4). A140676

T(n,k)=Number of nXk 0..2 arrays with rows nondecreasing and antidiagonals unimodal. A224012

a(n) = ∑_{1 <= x₁, x₂, x₃ <= n} ( n/gcd(x₁, x₂, x₃, n) )². A372962

a(n) = n*(8·n+3). A139276

Number of cubefree integers not exceeding 2ⁿ. A160113

Length of the maximal prefix of noncomposite numbers on row n of A249821. A250473

Consecutive states of a linear congruential pseudo-random number generator (93·s+1) mod 2¹³ when started at s=1. A384126

Sum of first n 4-almost primes. A86046