Properties of the Number 83420

Eighty-Three Thousand Four Hundred Twenty

Basics

Value: 83419 → 83420 → 83421

Parity: even

Prime: No

Previous Prime: 83417

Next Prime: 83423

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 43 × 97

Divisors: 1, 2, 4, 5, 10, 20, 43, 86, 97, 172

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100010111011100

Octal: 242734

Duodecimal: 40338

Hexadecimal: 145dc

Square: 6958896400

Square Root: 288.8252066562058

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 basic invariants for cyclic group of order and degree n. A2956

Number of permutations p of {1,2,3,...,n} such that ∑_k=1..n abs(k-p(k)) = 2n. A72949

Expansion of e.g.f. exp(-∑_k>=1 prime(k)*x^k/k!). A300661

Numbers k such that k and k+1 both have the prime signature (2,1,1,1) (A189982). A336658

a(n) = 2·4ⁿ - 1. A83420