Properties of the Number 80447

Eighty Thousand Four Hundred Forty-Seven

Basics

Value: 80446 → 80447 → 80448

Parity: odd

Prime: Yes

Previous Prime: 80429

Next Prime: 80449

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 80447

Divisors: 1, 80447

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101000111111

Octal: 235077

Duodecimal: 3A67B

Hexadecimal: 13a3f

Square: 6471719809

Square Root: 283.63180357639726

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

Start of a string of exactly 3 consecutive (but disjoint) pairs of twin primes. A35791

Lesser of the first pair of three successive prime pairs (no isolated primes occur in between). Least of the six successive primes which are member of prime pairs. A90953

Lesser of twin primes of (29n + 1, 29n + 3). A248620

Find the first (maximal) string, of length exactly n, of consecutive primes that alternate between types 6·k+1 and 6·k+5 or 6·k+5 and 6·k+1. The first element is a(n). A289237

Prime numbers preceded by two consecutive numbers which are products of four distinct primes (or tetraprimes). A361796

Primes p giving prime quadruples (30p+11, 30p+13, 30p+17, 30p+19). A87771

First of six consecutive primes that are three sets of twin primes. A136143

Lesser of twin primes p1 such that p1·p2-4 and p1·p2-6 are twin prime numbers. A174957

a(n) is the smallest lesser twin prime p from A001359 such that the distance to the previous lesser twin prime is 6·n. A340573

a(1) = 3, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10·a(n-1). A80447