Properties of the Number -440013

Four Hundred Forty Thousand Thirteen

Basics

Value: -440014 → -440013 → -440012

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 23 × 911

Divisors: 1, 3, 7, 21, 23, 69, 161, 483, 911, 2733

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101011011011001101

Octal: -1533315

Duodecimal: -192779

Hexadecimal: -6b6cd

Square: 193611440169

Square Root: 663.3347571173999

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

Numbers k such that k and k+1 have the same number and sum of divisors. A54004

Numbers k such that the average of the divisors of k and k+1 is the same. A238380

Runs of consecutive numbers with the same number and sum of divisors. A225758

Numbers n such that floor(antisigma(n) / σ(n)) = floor(antisigma(n+1) / σ(n+1)). A244666

Numbers k such that σ(k)*ω(k) = σ(k+1)*ω(k+1), where ω(k) is the number of distinct prime divisors of n (A001221). A63071

Numbers k such that k and k+1 have the same sum of unitary divisors and the same number of divisors. A64348

Numbers k such that k and k+1 have the same sum of unitary and nonunitary divisors. A64729

Numbers k such that A065608(k) = A065608(k+1). A65062

Numbers k such that sigmawt(k) = sigmawt(k+1), where sigmawt(k) is the sum of the divisors of k weighted by divisor multiplicity in k. A171183

Numbers k such that t(k) = t(k+1) where t(k) = τ(k) + σ(k) = A007503(k) is the number of subgroups of the dihedral group of order 2k. A322256