Properties of the Number 43420

Forty-Three Thousand Four Hundred Twenty

Basics

Value: 43419 → 43420 → 43421

Parity: even

Prime: No

Previous Prime: 43411

Next Prime: 43427

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 13 × 167

Divisors: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1010100110011100

Octal: 124634

Duodecimal: 21164

Hexadecimal: a99c

Square: 1885296400

Square Root: 208.37466256721328

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

Triangle of Gandhi polynomial coefficients. A65748

Number of primitive (aperiodic) reversible string structures with n beads using exactly three different colors. A56337

Third diagonal sequence of triangle A115127. A115134

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 641", based on the 5-celled von Neumann neighborhood. A273311

Indices of primes of the form p = 2ⁱ + 2^j + 1, i > j > 0 (A081091). A360448

a(1) = 1, a(2) = 2. For n >= 3, a(n) is found by concatenating the fourth powers of the first n-1 terms of the sequence and then dividing the resulting number by a(n-1). A181866

Numbers whose base-7 representation contains exactly four 6's. A43420