Properties of the Number 78999

Seventy-Eight Thousand Nine Hundred Ninety-Nine

Basics

Value: 78998 → 78999 → 79000

Parity: odd

Prime: No

Previous Prime: 78989

Next Prime: 79031

Digit Sum: 42

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 × 1549

Divisors: 1, 3, 17, 51, 1549, 4647, 26333, 78999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010010010111

Octal: 232227

Duodecimal: 39873

Hexadecimal: 13497

Square: 6240842001

Square Root: 281.067607525307

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

Smallest number that takes n steps to reach 1 under iteration of sum-of-squares-of-digits map (= smallest "happy number" of height n). A1273

Numbers that require exactly 8 iterations to determine that they are happy or not (A007770 and A031177). A193996

Numbers that set a new integer record for the ratio between the product and the sum of their digits. A240520

Coefficients A_n for the s=4 tennis ball problem. A78999

Maximum number of terms required to determine whether a number is happy or not (A007770 or A031177). A193995