Properties of the Number 85211

Eighty-Five Thousand Two Hundred Eleven

Basics

Value: 85210 → 85211 → 85212

Parity: odd

Prime: No

Previous Prime: 85201

Next Prime: 85213

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 ² × 37 × 47

Divisors: 1, 7, 37, 47, 49, 259, 329, 1739, 1813, 2303

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110011011011

Octal: 246333

Duodecimal: 4138B

Hexadecimal: 14cdb

Square: 7260914521

Square Root: 291.9092324679026

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

Expansion of ∑_{i = p·q, p prime, q prime} xⁱ/(1 - xⁱ) / ∏_j>=1 (1 - x^j). A281612

Array A(x,y): concatenation of the binary expansions of x & y in such a way that 'y' is inserted after the least significant 1-bit of 'x', followed by the remaining 0-bits, if any. Listed antidiagonalwise as A(0,0), A(1,0), A(0,1), A(2,0), A(1,1), A(0,2), ... Zero is expanded as an empty string. A85211