Properties of the Number 43290

Forty-Three Thousand Two Hundred Ninety

Basics

Value: 43289 → 43290 → 43291

Parity: even

Prime: No

Previous Prime: 43283

Next Prime: 43291

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 13 × 37

Divisors: 1, 2, 3, 5, 6, 9, 10, 13, 15, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100100011010

Octal: 124432

Duodecimal: 21076

Hexadecimal: a91a

Square: 1874024100

Square Root: 208.06249061279644

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

Numbers m such that the largest digit in the decimal expansion of 1/m is 3. A350814

a(n+1) = floor((1/n)*(∑_k=1..n a(k)⁽ⁿ⁺¹/k))), given a(0)=1, a(1)=3, a(2)=8. A79121

G.f. A(x) satisfies 1 + 2·A(x) = ∑_n>=0 (x + A(x)ⁿ)ⁿ. A380061

Least sum (n+1) + (n+2) + ... + (n+k) that is a multiple of the n-th triangular number, n(n+1)/2. A110351

Positive numbers m such that m² - 1 divides 4^m - 1. A271842

a(n)=6·a(n-1)+a(n-2), n>2 ; a(0)=1, a(1)=5, a(2)=30 . A155195

a(n) = 256·n² + 2·n. A158230

a(n) = 676·n² + 26. A158643

Numbers n such that φ(n) + 6 | σ(n). A15797

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 16. A31694