Properties of the Number -2216

Two Hundred Sixteen

Basics

Value: -2217 → -2216 → -2215

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 277

Divisors: 1, 2, 4, 8, 277, 554, 1108, 2216

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -100010101000

Octal: -4250

Duodecimal: -1348

Hexadecimal: -8a8

Square: 4910656

Square Root: 47.07440918375928

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

Square array T(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where T(n,k) = ∑_j=1..n (-k)^floor(n/j - 1). A345033

Square array A(n,k), n >= 1, k >= 1, read by antidiagonals downwards, where A(n,k) = ∑_d∣n φ(n/d) * (-k)^d-1. A382995

a(n) = ∑_k=1..n (-3)^floor(n/k - 1). A345035

a(n) = ∑_d∣n φ(n/d) * (-3)^d-1. A383000

a(n) = floor(3ⁿ / 2ⁿ). A2379

Zero together with the numbers which can be written as a sum of distinct odd powers of 2. A62880

Number of partitions of n such that the set of parts and the set of multiplicities of parts are disjoint. A114639

Numbers m such that there are precisely 14 groups of order m. A294155

Number of integer partitions of n with no pair of consecutive parts relatively prime. A328187

Number T(n,k) of partitions of n into parts of exactly k sorts which are introduced in ascending order; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A256130