Properties of the Number 2919

Two Thousand Nine Hundred Nineteen

Basics

Value: 2918 → 2919 → 2920

Parity: odd

Prime: No

Previous Prime: 2917

Next Prime: 2927

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

Today's Target

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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

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

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

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

a(n) = 2·n² + n - 7. A100041

a(n) is the smallest composite number whose prime divisors (with multiplicity) sum to prime(n); n >= 3. A295185

Positions of 3's in A264977; positions of 6's in A277330. A277713