Properties of the Number 2979

Two Thousand Nine Hundred Seventy-Nine

Basics

Value: 2978 → 2979 → 2980

Parity: odd

Prime: No

Previous Prime: 2971

Next Prime: 2999

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

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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

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

Numbers that are the sum of five positive cubes in five or more ways. A343989

Numbers that are the sum of five third powers in six or more ways. A345174