Properties of the Number 79391

Seventy-Nine Thousand Three Hundred Ninety-One

Basics

Value: 79390 → 79391 → 79392

Parity: odd

Prime: No

Previous Prime: 79379

Next Prime: 79393

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 13 × 31 × 197

Divisors: 1, 13, 31, 197, 403, 2561, 6107, 79391

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011011000011111

Octal: 233037

Duodecimal: 39B3B

Hexadecimal: 1361f

Square: 6302930881

Square Root: 281.7640857171119

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 (∏_j>=1 (1-(-x)^j) - 1)¹³ in powers of x. A47638

a(n) = n*(8·n² - 5)/3. A63523

a(n) = floor(n/z) where z is the number of zeros in the decimal expansion of 2ⁿ, and a(n)=0 when z=0. A330024

Number of (simple, undirected, unlabeled, connected) graphs with n vertices which contain no induced subgraph isomorphic to C5 (cycle on 5 vertices), P5 (path on 5 vertices) or complement of P5. A79391

Triangle read by rows: T(n, k) = ∑_i=1..n-k inverse-q-binomial(n-k-1, i-1) * q-binomial(n-2+i, n-2) for 0 < k < n with initial values T(n, 0) = 0 for n > 0 and T(n, n) = 1 for n >= 0, here q = 2. A355401