Properties of the Number 79081

Seventy-Nine Thousand Eighty-One

Basics

Value: 79080 → 79081 → 79082

Parity: odd

Prime: No

Previous Prime: 79063

Next Prime: 79087

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 31 × 2551

Divisors: 1, 31, 2551, 79081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010011101001

Octal: 232351

Duodecimal: 39921

Hexadecimal: 134e9

Square: 6253804561

Square Root: 281.2134420684758

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

Partial sums of A299256. A299262

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 7. A252148

Strong pseudoprimes to base 21. A20247

Strong pseudoprimes to base 50. A20276

Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 7. A252141

Numerator of (prime(n)+1)*(prime(n+1)+1)/(4*(prime(n)*prime(n+1)+1)). A79081

a(n) = sum of numbers formed using the digits of next n numbers. A81993