Properties of the Number 1873

One Thousand Eight Hundred Seventy-Three

Basics

Value: 1872 → 1873 → 1874

Parity: odd

Prime: Yes

Previous Prime: 1871

Next Prime: 1877

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 1873

Divisors: 1, 1873

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11101010001

Octal: 3521

Duodecimal: 1101

Hexadecimal: 751

Square: 3508129

Square Root: 43.278170016764804

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

Narayana's cows sequence: a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) + a(n-3). A930

Primes p such that (p+1)/2 is prime. A5383

Initial members of prime triples (p, p+4, p+6). A22005

Total size of all principal order ideals in the poset of integer partitions of n with the refinement order. A265947

Primes that become another prime under the map 8 <-> 9 (acting on the decimal digits). A175789

Prime triples: p; p+2 or p+4; p+6 all prime. A7529

Primes p whose base-3 expansion is also the decimal expansion of a prime. A65721

Primes of the form x² + 24·y². A107008

a(n) = a(n-1) + a(n-3) for n >= 3, with a(0) = 1, a(1) = a(2) = 0. This recurrence can also be used to define a(n) for n < 0. A78012

Primes with 10 as smallest positive primitive root. A61323