Properties of the Number 28437

Twenty-Eight Thousand Four Hundred Thirty-Seven

Basics

Value: 28436 → 28437 → 28438

Parity: odd

Prime: No

Previous Prime: 28433

Next Prime: 28439

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 9479

Divisors: 1, 3, 9479, 28437

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111100010101

Octal: 67425

Duodecimal: 14559

Hexadecimal: 6f15

Square: 808662969

Square Root: 168.63273703525067

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 k such that 39·2^k + 1 is prime. A2269

Composite numbers and 1 which yield a prime whenever a 7 is inserted anywhere in them, including at the beginning or end. A216168

Running time of Takeuchi function. A651

Numbers k such that 10⁹⁹⁹ + k is a (titanic) prime. A74282

Number of partitions of 3·n that have exactly n prime parts. A299731

Semiprimes that are also the sums of two, three and four successive semiprimes. A370685

Row sums of triangle A091604. A91610

a(n) = 11·Fibonacci(n+3) + Fibonacci(n-8) with n>=0. A282465

Numbers n such that 10ⁿ - 93 is prime. A178531

Number of length n sequences on alphabet {0,1,2} that contain all of 00, 01, 02, 10, 11, 12, 20, 21, 22 as (possibly overlapping) contiguous subsequences. A243862