Properties of the Number 78878

Seventy-Eight Thousand Eight Hundred Seventy-Eight

Basics

Value: 78877 → 78878 → 78879

Parity: even

Prime: No

Previous Prime: 78877

Next Prime: 78887

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 2 × 39439

Divisors: 1, 2, 39439, 78878

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011010000011110

Octal: 232036

Duodecimal: 39792

Hexadecimal: 1341e

Square: 6221738884

Square Root: 280.85227433652733

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 which have only digits 7 and 8 in base 10. A256340

Irreducible polynomial coefficient of singular value associated with sqrt(2n). A78878

The number of steps before reaching 1 or a repeated value, or -1 if neither occur, when starting at k = n and iterating k -> k/Lpf(k) - 1 if ω(k) is even, else k -> k·Lpf(k) + 1, where Lpf(k) (A020639) is the least prime dividing k and ω(k) (A001222) is the number of prime divisors of k counted with multiplicity. A365477