Properties of the Number 78857

Seventy-Eight Thousand Eight Hundred Fifty-Seven

Basics

Value: 78856 → 78857 → 78858

Parity: odd

Prime: Yes

Previous Prime: 78853

Next Prime: 78877

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 78857

Divisors: 1, 78857

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011010000001001

Octal: 232011

Duodecimal: 39775

Hexadecimal: 13409

Square: 6218426449

Square Root: 280.81488564533043

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

Primes that cannot become a different prime under any mapping of some single decimal digit <=> with some other single decimal digit. A180561

Numbers k such that (30^k - 1)/29 is prime. A98438

Primes having only {5, 7, 8} as digits. A260830

Lexicographically largest strictly increasing sequence of primes for which the continued square root map produces Feigenbaum's constant δ = 4.6692016... (A006890). A257809

Primes of the form x^y + y^z + z^x, for x,y,z > 1. A123207

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, 6,2]; short d-string notation of pattern = [662]. A78857

Numbers k such that (71·10^k - 287)/9 is prime. A286936