Properties of the Number 78913

Seventy-Eight Thousand Nine Hundred Thirteen

Basics

Value: 78912 → 78913 → 78914

Parity: odd

Prime: No

Previous Prime: 78901

Next Prime: 78919

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 23 × 47 × 73

Divisors: 1, 23, 47, 73, 1081, 1679, 3431, 78913

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010001000001

Octal: 232101

Duodecimal: 39801

Hexadecimal: 13441

Square: 6227261569

Square Root: 280.91457776341906

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

Wiener index of a benzenoid consisting of a double-step zig-zag chain of n hexagons (n >= 2, s = 2123; see the Gutman et al. reference). A193395

a(n) is the smallest positive integer·such that x² - n! is prime. A143931

Minimum value unattainable as the sum of 2 attained values of a·b*c with a,b,c 0..n integers. A225264

a(n) = floor(log₁₀(2^2ⁿ)). A129784

a(n) = 2^{2p - 1}, where p is the n-th Mersenne prime A000668(n). A139294

a(1)=a(2)=1, a(n)=a(n-1)+a(n-2) if n is not congruent to 3, a(n)=a(n-1)+a(n/3) if n is congruent to 3. A78913