Properties of the Number 28789

Twenty-Eight Thousand Seven Hundred Eighty-Nine

Basics

Value: 28788 → 28789 → 28790

Parity: odd

Prime: Yes

Previous Prime: 28771

Next Prime: 28793

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 28789

Divisors: 1, 28789

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 111000001110101

Octal: 70165

Duodecimal: 147B1

Hexadecimal: 7075

Square: 828806521

Square Root: 169.6732153287607

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 related to the strictly increasing subsequence of A053666. A230041

Primes that remain prime through 3 iterations of function f(x) = 5x + 8. A23286

Primes with digit sum = 34. A106769

Primes of the form k + A037276(k) in more than one way. A340636

Supersingular primes of the elliptic curve X₀ (11). A6962

Primes related to the nondecreasing subsequence of A053666. A69802

Numbers k such that the continued fraction for sqrt(k) has period 71. A20410

a(1) = 2, a(2) = 3 and a(n) = the smallest prime of the form k·a(n-1) - a(n-2). A72534

a(n) = A075443(A075451(n)). A75452

a(1) = 3, a(2) = 4. a(n) = (largest composite which occurs earlier in sequence) + (largest prime which occurs earlier in sequence). A120365