Properties of the Number 80001

Eighty Thousand One

Basics

Value: 80000 → 80001 → 80002

Parity: odd

Prime: No

Previous Prime: 79999

Next Prime: 80021

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 2963

Divisors: 1, 3, 9, 27, 2963, 8889, 26667, 80001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011100010000001

Octal: 234201

Duodecimal: 3A369

Hexadecimal: 13881

Square: 6400160001

Square Root: 282.84448023604773

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

Automorphic numbers: numbers k such that k⁶ ends with k. Also m-morphic numbers for all m not congruent to 26 (mod 50) but congruent to 6 (mod 10). A68408

a(1) = 1; for n > 1: a(n) = smallest odd number greater than a(n-1) which does not use any digit used by a(n-1). A229364

a(n) = 8·10ⁿ + 1. A199689

Numbers m such that m^m == m (mod 10^len(m + 2)), where len(m) is the number of digits of m (A055642). A373206

a(n) = 50·n² + 1. A157916

Primes that are the sum of 80001 consecutive primes. A216018

Numbers k such that k and k² use only the digits 0, 1, 4, 6 and 8. A136861

Smallest k such that each of the five factorials (5k)!, (5k+1)!, (5k+2)!, (5k+3)! and (5k+4)! has exactly 10ⁿ trailing 0's. Zero, if no such k exists. A181581

Number of partitions of n⁴ into at most two parts. A274323

Numbers n such that the digits of P₇(n), the n-th heptagonal number, end in n. A67271