Properties of the Number 78195

Seventy-Eight Thousand One Hundred Ninety-Five

Basics

Value: 78194 → 78195 → 78196

Parity: odd

Prime: No

Previous Prime: 78193

Next Prime: 78203

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 13 × 401

Divisors: 1, 3, 5, 13, 15, 39, 65, 195, 401, 1203

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011000101110011

Octal: 230563

Duodecimal: 39303

Hexadecimal: 13173

Square: 6114458025

Square Root: 279.63368895753604

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 n such that φ(n) = φ(n+7), with Euler's totient function φ = A000010. A179189

T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300465

Number of nX6 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300463

Number of n X n 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300459

In the following triangle the n-th row contains n n-digit (or (n-1)-digit) numbers whose concatenation (with a 0 prefixed for (n-1)-digit numbers) gives a substring of the cyclic concatenation of 1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,...: 1; 12 34; 123 456 789; 1234 5678 9012 3456; 12345 67890 12345 67890 12345; ... Sequence contains the sum of the terms of a row. A78195