Properties of the Number -2620169

Six Hundred Twenty Thousand One Hundred Sixty-Nine

Basics

Value: -2620170 → -2620169 → -2620168

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 67 × 39107

Divisors: 1, 67, 39107, 2620169

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001111111101100001001

Octal: -11775411

Duodecimal: -A64375

Hexadecimal: -27fb09

Square: 6865285588561

Square Root: 1618.6936090563897

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

Number of labeled series-reduced mobiles (circular rooted trees) with n leaves (root has degree 0 or >= 2). A32188

Triangle where T(n,k) = n!/(n-k)!*[x^k] ( x/(2·x + log(1-x)) )ⁿ⁺¹, for n>=k>=0, read by rows. A118788

Triangle where T(n,k) = n!*[x^k] ( x/(2·x + log(1-x)) )ⁿ⁺¹, for n>=k>=0, read by rows. A118787

Triangle read by rows, T(n,k) = ∑_j=k..n A269940(n,j)*A269939(j,k), for n>=0 and 0<=k<=n. A269957