Properties of the Number 1848

One Thousand Eight Hundred Forty-Eight

Basics

Value: 1847 → 1848 → 1849

Parity: even

Prime: No

Previous Prime: 1847

Next Prime: 1861

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 7 × 11

Divisors: 1, 2, 3, 4, 6, 7, 8, 11, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11100111000

Octal: 3470

Duodecimal: 10A0

Hexadecimal: 738

Square: 3415104

Square Root: 42.988370520409354

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) = n*(n+2) = (n+1)² - 1. A5563

Jordan function J₂(n) (a generalization of φ(n)). A7434

Balanced numbers: numbers k such that φ(k) (A000010) divides σ(k) (A000203). A20492

8 times triangular numbers: a(n) = 4·n*(n+1). A33996

Euler's "numerus idoneus" (or "numeri idonei", or idoneal, or suitable, or convenient numbers). A926

a(n) = σ(n)*φ(n). A62354

Number of n-step walks on a line starting from the origin but not returning to it. A63886

Numbers k such that σ(k) > 3·k. A68403

a(n) = (prime(n)-1)*(prime(n)+1). A84920

Terms in an n X n spiral that do not lie on its principal diagonals. A137932