Properties of the Number 3850

Three Thousand Eight Hundred Fifty

Basics

Value: 3849 → 3850 → 3851

Parity: even

Prime: No

Previous Prime: 3847

Next Prime: 3851

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 ² × 7 × 11

Divisors: 1, 2, 5, 7, 10, 11, 14, 22, 25, 35

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111100001010

Octal: 7412

Duodecimal: 228A

Hexadecimal: f0a

Square: 14822500

Square Root: 62.048368229954285

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 Product (1 - x^k)⁸ in powers of x. A731

Numbers n such that the decimal expansions of both n and n² have 0 as smallest digit and 8 as largest digit. A256708

The q expansion of λ⁵, a Hauptmodul for Gamma₁(5). A78905

a(n) = 1·2 + 3·4 + 5·6 + 7·8 + 9·10 + 11·12 + 13·14 + ... + (up to n). A228958

T(n,k)=Number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of floor(x(i)/x(i+1)) equal to zero. A189498

d(n,s) = number of perfect matchings on {1, 2, ..., n} with s short pairs. A79267

Number of nonempty pairwise coprime subsets of {1,...,n}, where a single number is not considered to be pairwise coprime unless it is equal to 1. A320426

Number of (w,x,y) with all terms in {0,...,n} and |w-x| < |x-y| < |y-w|. A212964

Expansion of ∏_m>=1 (1 + m²*q^m). A92484

a(n) = n*(8·n-1). A139274