Properties of the Number -2979

Nine Hundred Seventy-Nine

Basics

Value: -2980 → -2979 → -2978

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 331

Divisors: 1, 3, 9, 331, 993, 2979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -101110100011

Octal: -5643

Duodecimal: -1883

Hexadecimal: -ba3

Square: 8874441

Square Root: 54.58021619598075

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

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 363", based on the 5-celled von Neumann neighborhood. A268194

Expansion of ∏_k>=1 (1-x^k/∏_j=1..k (1-x^j)). A350587

Number of length n inversion sequences avoiding the patterns 010, 101, 120, 201, and 210. A279554

a(n) = 90·n - 81. A139280

Number of ways of writing n as the sum of 9 triangular numbers. A226253

Triangle read by rows: T(n,k) is the number of n-bead bracelets with exactly k different colored beads. A273891

a(1) = 7; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74343

a(n) = ∑_k=1..n floor(n²/k²). A153818

Sum of the third largest parts of the partitions of n into 9 parts. A326471

Number of compositions (ordered partitions) of n into distinct parts >= 3. A339101