Properties of the Number 80919

Eighty Thousand Nine Hundred Nineteen

Basics

Value: 80918 → 80919 → 80920

Parity: odd

Prime: No

Previous Prime: 80917

Next Prime: 80923

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁷ × 37

Divisors: 1, 3, 9, 27, 37, 81, 111, 243, 333, 729

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110000010111

Octal: 236027

Duodecimal: 3A9B3

Hexadecimal: 13c17

Square: 6547884561

Square Root: 284.46265132702393

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

Numbers m such that m divides 10^m - 1. A14950

Numbers k such that k | 11^k + 1. A15960

Numbers which can be expressed as the product of numbers made of only threes. A161141

Numbers k such that k*(k+1) gives the concatenation of two numbers m and m+1. A116294

Numbers which can be expressed as the product of numbers made of only nines. A161147

a(n) = 3ⁿ*(n³ - 3·n² + 2·n + 162)/162. A81914

Odd numbers divisible by exactly 8 primes (counted with multiplicity). A46321

a(n) = 70·n² - 1. A158736

Number of Motzkin paths of length n with no peaks at level 3. A257104

Numbers k that divide the smallest number whose sum of digits is k. A342810