Properties of the Number 1862

One Thousand Eight Hundred Sixty-Two

Basics

Value: 1861 → 1862 → 1863

Parity: even

Prime: No

Previous Prime: 1861

Next Prime: 1867

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 7 ² × 19

Divisors: 1, 2, 7, 14, 19, 38, 49, 98, 133, 266

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101000110

Octal: 3506

Duodecimal: 10B2

Hexadecimal: 746

Square: 3467044

Square Root: 43.15089802078283

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

Number of non-alternating compositions of n. A345192

Partial sums of A299266. A299267

Number of reduced words of length n in the Weyl group D₇. A162210

a(n) = 2*(n² - n + 1). A51890

Goodstein sequence starting with 4: to calculate a(n+1), write a(n) in the hereditary representation in base n+2, then bump the base to n+3, then subtract 1. A56193

Indices n such that A019328(n) = φ(n,10) is prime, where φ is a cyclotomic polynomial. A138940

Number of partitions of n such that the least part occurs at least twice. A117989

Expansion of 1/(1 - x - x⁹ - x¹⁷ + x¹⁸). A175772

Ruth-Aaron numbers (2): sum of prime divisors of n = sum of prime divisors of n+1 (both taken with multiplicity). A39752

Number of primes less than 1000n. A38812