Properties of the Number -2440

Four Hundred Forty

Basics

Value: -2441 → -2440 → -2439

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 × 61

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 61, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110001000

Octal: -4610

Duodecimal: -14B4

Hexadecimal: -988

Square: 5953600

Square Root: 49.39635614091387

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

G.f.: ∑_n>=0 (n+1) * xⁿ * (1 + xⁿ)ⁿ / (1 + xⁿ⁺¹)ⁿ⁺². A326285

Expansion of (1-q)^k/∏_j=1..k (1-q^j) for k=12. A275643

Numbers k that divide 3^k - 1. A67945

Numbers k such that k² divides 9^k - 1. A127101

a(n) = n²*∏_{distinct primes p dividing n} (1+1/p²). A65958

a(n) is the starting position of the first occurrence of a string of exactly n 6's in the decimal expansion of π. A96760

a(n) = τ(n)*Fibonacci(n), where τ(n) = A000005(n), the number of divisors of n. A203847

Number of partitions p of n into distinct parts not including the number of parts. A240861

Numbers m such that 6·m+1 is a perfect square. A62717

Positive integers n such that n⁵ + 1 is semiprime. A104238