Properties of the Number 2160

Two Thousand One Hundred Sixty

Basics

Value: 2159 → 2160 → 2161

Parity: even

Prime: No

Previous Prime: 2153

Next Prime: 2161

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ³ × 5

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100001110000

Octal: 4160

Duodecimal: 1300

Hexadecimal: 870

Square: 4665600

Square Root: 46.475800154489

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Coordination sequence T1 for Zeolite Code ABW and ATN. A8000

Least integer of each prime signature A124832; also products of primorial numbers A002110. A25487

Expansion of Eisenstein series E₄(q) (alternate convention E₂(q)); θ series of E₈ lattice. A4009

Coefficients in expansion of Eisenstein series E₂ (also called E₁ or G₂). A6352

a(n) = n*σ(n). A64987

a(n) = n*(n+3). A28552

Numbers that are divisible by exactly 8 primes counting multiplicity. A46310

Pentagonal numbers multiplied by 2: a(n) = n*(3·n-1). A49450

Expansion of 6-dimensional cusp form (η(q) * η(q³))⁶ in powers of q. A7332

Ramanujan's largely composite numbers, defined to be numbers m such that d(m) >= d(k) for k = 1 to m-1. A67128