Properties of the Number 30391

Thirty Thousand Three Hundred Ninety-One

Basics

Value: 30390 → 30391 → 30392

Parity: odd

Prime: Yes

Previous Prime: 30389

Next Prime: 30403

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 30391

Divisors: 1, 30391

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011010110111

Octal: 73267

Duodecimal: 15707

Hexadecimal: 76b7

Square: 923612881

Square Root: 174.33014656105811

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

Compositions: 6th column of A048004. A6980

Number of initial odd numbers in class n of the iterated φ function. A92878

G.f. A(x) satisfies A(x) = 1 - x/A(x)³ * (1 - A(x) - A(x)⁴). A371890

a(1) = 1; a(n) = nⁿ mod (n-1)^n-1 for n > 1. A66611

Prime numbers p such that p³ - (p-1)² and p³ + (p-1)² are also primes. A137474

Primorial base emirps: prime numbers whose primorial base reversal is a different prime. A333425

Number of bipartite partitions. A2762

Primes of the form 9x³ + x + 1. A114354

Primes expressed as the sum of square of digits of all primes. A181508

Numbers k such that (86·10^k + 121)/9 is prime. A283185