Properties of the Number 1850

One Thousand Eight Hundred Fifty

Basics

Value: 1849 → 1850 → 1851

Parity: even

Prime: No

Previous Prime: 1847

Next Prime: 1861

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 ² × 37

Divisors: 1, 2, 5, 10, 25, 37, 50, 74, 185, 370

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 11100111010

Octal: 3472

Duodecimal: 10A2

Hexadecimal: 73a

Square: 3422500

Square Root: 43.01162633521314

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

a(n) = n² + 1. A2522

a(n) = sigma₂(n): sum of squares of divisors of n. A1157

Number of partitions of n into prime parts. A607

a(n) = ∑_d∣n (-1)^d-1*d². A321543

Pentagonal numbers multiplied by 2: a(n) = n*(3·n-1). A49450

Numbers m such that the Bernoulli number B_m has denominator 66. A51230

Expansion of η(q)⁵ * η(q³) * η(q⁶)⁴ / η(q²)⁴ in powers of q. A214262

a(n) = 2·a(n-1) + (n-1)*a(n-2). A5425

Sum of squares of odd divisors of n. A50999

Number of partitions of n into aliquant parts (i.e., parts that do not divide n). A98743