Properties of the Number 2819

Two Thousand Eight Hundred Nineteen

Basics

Value: 2818 → 2819 → 2820

Parity: odd

Prime: Yes

Previous Prime: 2803

Next Prime: 2833

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2819

Divisors: 1, 2819

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101100000011

Octal: 5403

Duodecimal: 176B

Hexadecimal: b03

Square: 7946761

Square Root: 53.094255809833136

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

Safe primes p: (p-1)/2 is also prime. A5385

Number of partitions of n having a non-integer median. A307683

Numbers n such that n, 2n+1, and 4n+3 all prime. A7700

Lucasian primes: p == 3 (mod 4) with 2·p+1 prime. A2515

Safe primes which are also Sophie Germain primes. A59455

Number of strict integer partitions of n with a part dividing all the other parts. A97986

Prime self (or Colombian) numbers: primes not expressible as the sum of an integer and its digit sum. A6378

Primes p such that p + nextprime(p) is the arithmetic mean of a pair of twin primes. A99349

Smallest prime p such that 19ⁿ divides p¹⁸ - 1. A125634

Number T(n,k) of equivalence classes of ways of placing k 3 X 3 tiles in an n X 10 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=3, 0<=k<=3·floor(n/3), read by rows. A238592