Properties of the Number 28541

Twenty-Eight Thousand Five Hundred Forty-One

Basics

Value: 28540 → 28541 → 28542

Parity: odd

Prime: Yes

Previous Prime: 28537

Next Prime: 28547

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 28541

Divisors: 1, 28541

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111101111101

Octal: 67575

Duodecimal: 14625

Hexadecimal: 6f7d

Square: 814588681

Square Root: 168.94081803992782

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

Primes of the form 2n²+14n+5. A154577

T(n,k)=Number of nXk 0..2 arrays with rows nondecreasing and antidiagonals unimodal. A224012

Primes p such that p + digitsum(p) = q^k for some prime q and k > 1 where digitsum(n) = A007953(n). A242368

Prime numbers a(n) = floor(2^{n^d}) for all n>=1 where d=1.5039285240... is the constant defined at A339457. A339459

Numbers n with property that n² starts and ends with 81. A159775

The number of 2 X 2 symmetric positive definite matrices whose entries are integers x,y,z satisfying x² + y² + z² <= n². A219744

Number of n X 4 0..2 arrays with rows nondecreasing and antidiagonals unimodal. A224008

Number of 4 X n 0..2 arrays with rows nondecreasing and antidiagonals unimodal. A224014

Primes such that prime plus its digit sum is a perfect square. A230087

Odd numbers n such that the sum of the binary digits of n and n² both equal 12. A261593