Properties of the Number 28113

Twenty-Eight Thousand One Hundred Thirteen

Basics

Value: 28112 → 28113 → 28114

Parity: odd

Prime: No

Previous Prime: 28111

Next Prime: 28123

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 9371

Divisors: 1, 3, 9371, 28113

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111010001

Octal: 66721

Duodecimal: 14329

Hexadecimal: 6dd1

Square: 790340769

Square Root: 167.6693174078072

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

Numbers k such that replacing each nonzero digit d with the d-th prime (replacing each 0 digit with a 1) yields a square. A48383

Number of 2X5 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2·n² (number of collections of 2 zero-sum 5-vectors with total modulus squared not more than 2·n², ignoring vector and component permutations). A192700

Semiprimes k such that k+1, k+2, 2·k+1 and 2·k+3 are also semiprimes. A362200

Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,3}. A79965

Expansion of 1/((1-4x)(1-5x)(1-6x)(1-11x)). A28113