Properties of the Number 81427

Eighty-One Thousand Four Hundred Twenty-Seven

Basics

Value: 81426 → 81427 → 81428

Parity: odd

Prime: No

Previous Prime: 81421

Next Prime: 81439

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 107 × 761

Divisors: 1, 107, 761, 81427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111000010011

Octal: 237023

Duodecimal: 3B157

Hexadecimal: 13e13

Square: 6630356329

Square Root: 285.3541659061595

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

Number of skew partitions of n whose diagrams have no empty rows and columns. A225114

Numbers whose base-5 representation has exactly 8 runs. A43608

Numbers n such that 7·3^2·n+5·3ⁿ+1 is prime. A227445

Numbers that are the sum of 4 nonzero 4th powers. A3338

Class 8- primes. A81427