Properties of the Number -2919

Nine Hundred Nineteen

Basics

Value: -2920 → -2919 → -2918

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 139

Divisors: 1, 3, 7, 21, 139, 417, 973, 2919

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101101100111

Octal: -5547

Duodecimal: -1833

Hexadecimal: -b67

Square: 8520561

Square Root: 54.0277706369604

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

a(n) = (-n³ + 9n² - 5n + 3)/3. A161702

Expansion of e.g.f. ∏_k>=1 (1 + x^prime(k))^1/prime(k!). A352005

McKay-Thompson series of class 44a for Monster. A58680

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 177", based on the 5-celled von Neumann neighborhood. A270621

Number of partitions of n in which the sequence of frequencies of the summands is nondecreasing. A100883

Numbers that are the sum of 7 positive 6th powers. A3363

In the '3x+1' problem, these values for the starting value set new records for number of steps to reach 1. A6877

Triangle T, read by rows, such that T(n,k) equals the (n-k)-th row sum of T^k, where T^k is the k-th power of T as a lower triangular matrix. A91351

Triangle read by rows: T(n,k) = number of k-covers of a labeled n-set, k=1..2ⁿ-1. A55154

a(n) = n*(3·n + 13)/2. A140672