Properties of the Number 78978

Seventy-Eight Thousand Nine Hundred Seventy-Eight

Basics

Value: 78977 → 78978 → 78979

Parity: even

Prime: No

Previous Prime: 78977

Next Prime: 78979

Digit Sum: 39

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 13163

Divisors: 1, 2, 3, 6, 13163, 26326, 39489, 78978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010010000010

Octal: 232202

Duodecimal: 39856

Hexadecimal: 13482

Square: 6237524484

Square Root: 281.03024748236624

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

Least positive integer k such that k and k·n are terms of A259539. A259540

Averages of twin prime pairs that are sums of 5 consecutive averages of twin prime pairs. A160919

Number of 6 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281210

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281205

Sequence is S(oo), where S(1)={1,2,3,4}, S(n+1)=S(n)S'(n) and S'(n) is obtained from S(n) by changing its last term using the cyclic permutation 1->2->3->4->1. A78978