Properties of the Number 78858

Seventy-Eight Thousand Eight Hundred Fifty-Eight

Basics

Value: 78857 → 78858 → 78859

Parity: even

Prime: No

Previous Prime: 78857

Next Prime: 78877

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 13 × 337

Divisors: 1, 2, 3, 6, 9, 13, 18, 26, 39, 78

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010000001010

Octal: 232012

Duodecimal: 39776

Hexadecimal: 1340a

Square: 6218584164

Square Root: 280.8166661720775

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 k such that gcd(prime(k+1)-1, prime(k)-1) = 2n. A67605

Position of n! in A025487. A98718

Numbers k such that (12^k + 1)² - 2 is prime. A364077

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d = 2, 4 or 6) and forming d-pattern = [6, 6, 4]; short d-string notation of pattern = [664]. A78858

Table read by antidiagonals: T(n,k) (n >= 3, k >= 1) is the number of vertices formed in a regular n-gon by straight line segments when connecting the n corner vertices to the points dividing the sides into k equal parts. A354544