Properties of the Number -123729

One Hundred Twenty-Three Thousand Seven Hundred Twenty-Nine

Basics

Value: -123730 → -123729 → -123728

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 41243

Divisors: 1, 3, 41243, 123729

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11110001101010001

Octal: -361521

Duodecimal: -5B729

Hexadecimal: -1e351

Square: 15308865441

Square Root: 351.75133262007694

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 g.f. A(x) satisfying 0 = ∑_n=-oo..+oo xⁿ * A(x)ⁿ * (1 - x^n-1)ⁿ⁺¹. A366731

T(n,k)=Number of nXk 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j). A230184

Numbers n such that the heptagonal number H(n) is equal to the sum of the pentagonal numbers P(m) and P(m+1) for some m. A252586

Number of 2 X n 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j). A230185

Number of skew shapes in a 3 X n rectangle with no empty rows or columns. A362153