Properties of the Number 419

Four Hundred Nineteen

Basics

Value: 418 → 419 → 420

Parity: odd

Prime: Yes

Previous Prime: 409

Next Prime: 421

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 419

Divisors: 1, 419

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110100011

Octal: 643

Duodecimal: 2AB

Hexadecimal: 1a3

Square: 175561

Square Root: 20.46948949045872

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

Lesser of twin primes. A1359

Sophie Germain primes p: 2p+1 is also prime. A5384

Primes of the form 4·k + 3. A2145

Twin primes. A1097

a(n) = n + (n+1)². A28387

Ramanujan primes R_n: a(n) is the smallest number such that if x >= a(n), then π(x) - π(x/2) >= n, where π(x) is the number of primes <= x. A104272

Primes with primitive root 2. A1122

Numbers k that divide the (left) concatenation of all numbers <= k written in base 25 (most significant digit on left). A29494

Primes of the form 3n-1. A3627

Primes of the form 6k-1. A7528