Properties of the Number 85073

Eighty-Five Thousand Seventy-Three

Basics

Value: 85072 → 85073 → 85074

Parity: odd

Prime: No

Previous Prime: 85061

Next Prime: 85081

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 241 × 353

Divisors: 1, 241, 353, 85073

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110001010001

Octal: 246121

Duodecimal: 41295

Hexadecimal: 14c51

Square: 7237415329

Square Root: 291.6727618410742

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

Integers j not of form 3m+1 such that for any integer k>0, j·10^k-1 has a divisor in the set { 7, 11, 13, 37 }. A243974

Numbers k such that 2^σ(k) == -1 (mod k). A276238

Numbers m that divide 4^{m + 1} + 1. A329168

For n > 1, a(n) is the smallest number such that n-th concatenation is prime and the smallest palindrome beginning with (but not equal to) this concatenation is also prime. A88090

Numbers k such that 2^ψ(k) == -1 (mod k) where ψ(k) = A001615(k). A291164

Smallest k such that n+k and n·k have the same prime signature, or 0 if no such number exists. A85073