Properties of the Number 84045

Eighty-Four Thousand Forty-Five

Basics

Value: 84044 → 84045 → 84046

Parity: odd

Prime: No

Previous Prime: 84017

Next Prime: 84047

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 13 × 431

Divisors: 1, 3, 5, 13, 15, 39, 65, 195, 431, 1293

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100001001101

Octal: 244115

Duodecimal: 40779

Hexadecimal: 1484d

Square: 7063562025

Square Root: 289.90515690480566

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

Irregular triangle read by rows: T(n,k) is the number of inequivalent connected induced k-vertex subgraphs of the hypercube graph of dimension n >= 0, 1 <= k <= 2ⁿ. A369605

Number of 6-cycles in the n-polygon diagonal intersection graph. A300554

Numbers k such that k*(k+1)-1 and k*(k+1)+1 are twin primes and k*(k+3)-1 and k*(k+3)+1 are also twin primes. A138303

a(n) = 8·a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 8. A86903

a(n) is the number of edges of a regular polygon P with the property that packing n nonoverlapping equal circles inside P, arranged in a configuration with dihedral symmetry D_2m with m >= 3, maximizes the packing density. A343262

Duplicate of A083982. A84045