Properties of the Number 28573

Twenty-Eight Thousand Five Hundred Seventy-Three

Basics

Value: 28572 → 28573 → 28574

Parity: odd

Prime: Yes

Previous Prime: 28571

Next Prime: 28579

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 28573

Divisors: 1, 28573

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110011101

Octal: 67635

Duodecimal: 14651

Hexadecimal: 6f9d

Square: 816416329

Square Root: 169.03549923019128

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

a(n) = ∑_k=1..n gcd(k, n)⁴. A343498

Prime number spiral (clockwise, East spoke). A54555

Numbers k such that 255·2^k-1 is prime. A50886

Starts of runs of at least 3 consecutive odd numbers whose prime factors are all prime-indexed primes. A357168

Values of n for which the decimal number 10...080...01 is an n-digit prime. A100458

a(0)=1, a(1)=1, a(n) = 13·a(n/2) for n=2,4,6,..., a(n) = 12·a((n-1)/2) + a((n+1)/2) for n=3,5,7,.... A116524

Primes of the form k² + 12. A138368

Expansion of 1/(1-x⁴-x⁵-x⁶-x⁷-x⁸-x⁹-x¹⁰-x¹¹). A17833

Primes of the form sum 6d/(2 + μ(d)) for some k and all d dividing k. A69548

Primes p such that the sum of the digits of p is not prime, but the sum of each digit raised to the 4th power is prime. A91368