Properties of the Number -20007

Twenty Thousand Seven

Basics

Value: -20008 → -20007 → -20006

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 13 × 19

Divisors: 1, 3, 9, 13, 19, 27, 39, 57, 81, 117

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100111000100111

Octal: -47047

Duodecimal: -B6B3

Hexadecimal: -4e27

Square: 400280049

Square Root: 141.4461028095154

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

Expansion of c(q) * c(q⁶) / c(q²)² in powers of q where c() is a cubic AGM θ function. A122830

Expansion of c(q³) / (c(q³) + c(q⁶)) where c() is a cubic AGM function. A145977

Number of partitions p of n such that (number of even numbers in p) = (number of odd numbers in p). A241638

List the positions of all digits '1' in the sequence. This is the lexicographically earliest increasing sequence with this property. A98645

Numbers k such that binomial(2k,k) is not divisible by 3, 5 or 7. A30979

Number of partitions of n having no parts with multiplicity 7. A184642

Multiples of 9 in which there is no common digit in successive terms. A83497

Expansion of f(-x, -x⁵) * f(-x⁶) / f(-x)² in powers of·where f(, ) and f() are Ramanujan θ functions. A132302

G.f. satisfies: A(x/A(x)²) = 1 + x·A(x). A145350

Numbers that are the sum of four third powers in six or more ways. A345148