Properties of the Number -2070

Seventy

Basics

Value: -2071 → -2070 → -2069

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 23

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 23

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000010110

Octal: -4026

Duodecimal: -1246

Hexadecimal: -816

Square: 4284900

Square Root: 45.4972526643093

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

Generalized Stirling number triangle of first kind read by rows: T(n, k) = [x^k] ∏_m=1..n (x - m - r), with r = 3. A49459

a(n) = A173557(n) * A345001(n). A345049

a(n) = n² - (n-1)² - (n-2)² - ... - 1². A179297

Expansion of ∏_n>=1 (1 - 4·xⁿ)^1/2. A303347

Expansion of ∏_m>=1 (1 - m·q^m)⁵. A22665

McKay-Thompson series of class 24f for Monster. A58589

Expansion of 1/(1+x²+2·x³). A77963

G.f.: A(x) = x + ∑_n>=1 x^2·n / (1+x)^A193259(n). A193263

Oblong (or promic, pronic, or heteromecic) numbers: a(n) = n*(n+1). A2378

a(n) = 2·n*(2·n-1). A2939