Properties of the Number 20351

Twenty Thousand Three Hundred Fifty-One

Basics

Value: 20350 → 20351 → 20352

Parity: odd

Prime: No

Previous Prime: 20347

Next Prime: 20353

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 47 × 433

Divisors: 1, 47, 433, 20351

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111101111111

Octal: 47577

Duodecimal: B93B

Hexadecimal: 4f7f

Square: 414163201

Square Root: 142.65693113199933

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

T(n,k) = number of n X n X n triangular 0..k arrays with every horizontal row having the same average value. A214595

Number of nXnXn triangular 0..2 arrays with every horizontal row having the same average value. A214589

Generalized Markoff numbers: largest of 7-tuple of positive numbers a, b, c, d, e, f, g satisfying the Markoff(7) equation a²+b²+c²+d²+e²+f²+g² = 3abcdefg. A227211

Integers n such that exactly 80 percent of the digits in base 2 are 1's. A163142

Number of 5X5X5 triangular 0..n arrays with every horizontal row having the same average value. A214598

Odd numbers n such that the sum of the binary digits of n and n² both equal 12. A261593

Binomial transform of A135416. A138035

Numbers k such that the continued fraction for sqrt(k) has period 12. A20351