Properties of the Number 28111

Twenty-Eight Thousand One Hundred Eleven

Basics

Value: 28110 → 28111 → 28112

Parity: odd

Prime: Yes

Previous Prime: 28109

Next Prime: 28123

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 28111

Divisors: 1, 28111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111001111

Octal: 66717

Duodecimal: 14327

Hexadecimal: 6dcf

Square: 790228321

Square Root: 167.66335318130794

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 that are the sum of 25 consecutive primes. A215991

Primes having only {1, 2, 8} as digits. A385775

Total sum of the numbers of partitions with positive k-th ranks of all partitions of n. A208479

Prime numbers containing the string 111. A243527

Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k),(r,r)|0<k<=4,0<r<=2} which never go above the line y=x. A175937

Primes p that p//13 and p//31 are consecutive primes. A176601

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n) + 1, where a(0) = 2, a(1) = 4, b(0) = 1, b(1) = 3, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A295954

Let c(k) denote the k-th composite number and p(k) the k-th prime number; then a(n) = ∑_{i=n*(n-1)/2+1 .. n*(n+1)/2} c(i) - ∑_i=1..n p(i). A24850

Primes arising in A085042: a(n) = the n-th partial sum of A085042. A85043

Primes p such that q = 2·p² - 1 and 2·p*q - 1 are also prime. A224990