Properties of the Number 78020

Seventy-Eight Thousand Twenty

Basics

Value: 78019 → 78020 → 78021

Parity: even

Prime: No

Previous Prime: 78017

Next Prime: 78031

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 47 × 83

Divisors: 1, 2, 4, 5, 10, 20, 47, 83, 94, 166

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000011000100

Octal: 230304

Duodecimal: 39198

Hexadecimal: 130c4

Square: 6087120400

Square Root: 279.32060432413505

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

Largest number which requires n iterations of the bi-unitary totient function (A116550) to reach 1. A225175

Expansion of (1-x)/(1-x+2·x²). A78020

Smallest prime that is the sum of a square and a positive cube in n different ways. A173795