Properties of the Number 28891

Twenty-Eight Thousand Eight Hundred Ninety-One

Basics

Value: 28890 → 28891 → 28892

Parity: odd

Prime: No

Previous Prime: 28879

Next Prime: 28901

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 167 × 173

Divisors: 1, 167, 173, 28891

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111000011011011

Octal: 70333

Duodecimal: 14877

Hexadecimal: 70db

Square: 834689881

Square Root: 169.9735273505848

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

Products of 2 successive primes. A6094

a(n) = prime(2·n-1)*prime(2·n). A89581

Product of the n-th sexy prime pair. A111192

Numbers n such that exactly two positive d in the range d <= n/2 exist which divide binomial(n-d-1, d-1) and which are not coprime to n. A178098

Numbers that are both a sum and a product of two or more consecutive primes. A254859

Positions of records in A329040. A329051

Table, read by antidiagonals, of iterated binomial transforms of A095148, which also forms the antidiagonal sums shift right. A95788

Product of adjacent primes with a gap of 6. A210477

Number of (n+1) X (1+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251081

a(n) = (n+1)³ - n². A261893