Properties of the Number 43427

Forty-Three Thousand Four Hundred Twenty-Seven

Basics

Value: 43426 → 43427 → 43428

Parity: odd

Prime: Yes

Previous Prime: 43411

Next Prime: 43441

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 43427

Divisors: 1, 43427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100110100011

Octal: 124643

Duodecimal: 2116B

Hexadecimal: a9a3

Square: 1885904329

Square Root: 208.39145855816645

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

Euler transform of reduced totient function ψ(n), cf. A002322. A61257

Numerators of continued fraction convergents to sqrt(613). A42176

Prime chain of 128 terms, including 104 distinct primes, consisting of the output of eight equations that alternate sequentially within a procedural expression of a single polynomial. The equations are either subsequences of x² - 79x + 1601 or transforms with one exception: 100x² - 2260x + 12959. The other four distinct equations are Euler-derived: 25x² - 1185x + 14083, 25x² - 775x + 6047, 100x² - 2280x + 13159, 100x² - 4160x + 43427. A140708

Triangle read by rows: T(n,k) is the number of primes in the half-open interval [10ⁿ, 10ⁿ + 10^k), n >= 1, 1 <= k <= n. A323744

Primes p such that p⁷ - 1 has 8 divisors. A341669

Primes p such that if q is the next prime, the sum (with multiplicity) of prime factors of p² + q² is a square. A359443

Numbers having three 1's in base 8. A43427