Properties of the Number 1863

One Thousand Eight Hundred Sixty-Three

Basics

Value: 1862 → 1863 → 1864

Parity: odd

Prime: No

Previous Prime: 1861

Next Prime: 1867

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 23

Divisors: 1, 3, 9, 23, 27, 69, 81, 207, 621, 1863

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101000111

Octal: 3507

Duodecimal: 10B3

Hexadecimal: 747

Square: 3470769

Square Root: 43.162483709814474

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

Generalized 13-gonal numbers: m*(11·m-9)/2 with m = 0, 1, -1, 2, -2, 3, -3, ... A195313

Product of the 4th power of a prime (A030514) and a different prime (p⁴*q). A178739

Number of partitions of n such that the successive differences of consecutive parts are nondecreasing. A240026

Second heptagonal numbers: a(n) = n*(5·n+3)/2. A147875

Number of inequivalent ways (mod D₄) a pair of checkers can be placed on an n X n board. A14409

a(n) = 2·n² - 2·n + 3. A97080

Smaller of two consecutive numbers each divisible by a cube greater than one. A68140

Numbers of the form n*(7n+-1)/2. A57570

Numbers m such that there are precisely 15 groups of order m. A294156

1 together with numbers of the form p·q⁴ and p⁹, where p and q are distinct primes. A30628