Properties of the Number 78988

Seventy-Eight Thousand Nine Hundred Eighty-Eight

Basics

Value: 78987 → 78988 → 78989

Parity: even

Prime: No

Previous Prime: 78979

Next Prime: 78989

Digit Sum: 40

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 7 ² × 13 × 31

Divisors: 1, 2, 4, 7, 13, 14, 26, 28, 31, 49

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010010001100

Octal: 232214

Duodecimal: 39864

Hexadecimal: 1348c

Square: 6239104144

Square Root: 281.04803859838626

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

Expansion of ∏_k>=1 (1 + (x+x²)^k) / (1 - (x+x²)^k). A266124

a(n) = [ a(n-1)/a(1) ] + [ a(n-3)/a(3) ] + [ a(n-5)/a(5) ] + ..., for n >= 3. A22860

Chebyshev sequence with Diophantine property. A78988