Properties of the Number -2016840

Sixteen Thousand Eight Hundred Forty

Basics

Value: -2016841 → -2016840 → -2016839

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 7 ⁵

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111101100011001001000

Octal: -7543110

Duodecimal: -8131A0

Hexadecimal: -1ec648

Square: 4067643585600

Square Root: 1420.154921126565

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

Triangle read by rows: T(n, m) = S1(n, m)*7^n-m, where S1 are the signed Stirling numbers of first kind A008275 (n >= 1, 1 <= m <= n). A51186

Sept-factorial numbers. A51188

Septuple factorial, 7-factorial, n!7, n!!!!!!!, a(n) = n·a(n-7) if n > 1, else 1. A114799

a(n) = (n³ - n)*7ⁿ. A128965

Seventh column of triangle A075502. A76002

Triangle T(n, k) = ∏_j=0..k (j·n + prime(m)), with T(n, 0) = prime(m) and m = 4, read by rows. A153272

Base-7 complementary numbers: n equals the product of the 7 complement (7-d) of its base-7 digits d. A298977

Triangle read by rows: T(n,k) = n^k * k!. A153188