Properties of the Number 27155

Twenty-Seven Thousand One Hundred Fifty-Five

Basics

Value: 27154 → 27155 → 27156

Parity: odd

Prime: No

Previous Prime: 27143

Next Prime: 27179

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 5431

Divisors: 1, 5, 5431, 27155

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101000010011

Octal: 65023

Duodecimal: 1386B

Hexadecimal: 6a13

Square: 737394025

Square Root: 164.78774226258457

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

Smallest k such that k·2*p(n)²+1=q is prime, k·2*q²+1=r, k·2*r²+1=s, k·2*r²+1=t, r, s, and t are also prime. A224496

The number of vertices on a 2 by 1 ellipse formed by the straight line segments mutually connecting all points formed by dividing the ellipse into 2n equal angle sectors from its origin. A341762

Number of immersions of unoriented circle into oriented sphere with 2n double points such that two different choices of orientation of the circle are not related by geotopy. A268564

Greatest number in row n of array T given by A027144. A27155