Properties of the Number 80029

Eighty Thousand Twenty-Nine

Basics

Value: 80028 → 80029 → 80030

Parity: odd

Prime: No

Previous Prime: 80021

Next Prime: 80039

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 191 × 419

Divisors: 1, 191, 419, 80029

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011100010011101

Octal: 234235

Duodecimal: 3A391

Hexadecimal: 1389d

Square: 6404640841

Square Root: 282.8939730711844

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

Becomes prime after n iterations of f(x) = φ(x)+1 (least inverse of A039651). A39652

One of the two successive approximations up to 17ⁿ for 17-adic integer sqrt(-2). This is the 10 (mod 17) case (except for n = 0). A322564

Indices of triangular numbers that are one-tenth of other triangular numbers. A341893

Expansion of χ(x²) / φ(x) in powers of·where φ(), χ() are Ramanujan θ functions. A246712

a(n) = (1/2)*(n²+n+2)*(n²+3·n+1). A58310

Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any element within a city block distance of two, and containing the value n(n+1)/2-2. A212039

Integers y corresponding to the terms of A342387. A342388

Sum of primes between n and n². A109818

Digits of one of the two 17-adic integers sqrt(-2) that is related to A322564. A322566

a(n) is taken to be the smallest positive integer not already present which is consistent with the condition "n is a member of the sequence if and only if a(n) is a multiple of 3". A80029