Properties of the Number 84947

Eighty-Four Thousand Nine Hundred Forty-Seven

Basics

Value: 84946 → 84947 → 84948

Parity: odd

Prime: Yes

Previous Prime: 84919

Next Prime: 84961

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 84947

Divisors: 1, 84947

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10100101111010011

Octal: 245723

Duodecimal: 411AB

Hexadecimal: 14bd3

Square: 7215992809

Square Root: 291.45668631891084

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 p such that 2·p⁴+-9 are also prime. A174365

Number of nX7 0..1 arrays with every element unequal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero. A303807

Integers k such that 28*φ(29·197³*k) is not a totient number where φ is the totient function. A361396

a(n) = ∏_i=0..n-1 (7·i+2). A84947

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero. A303808

E.g.f. satisfies: A(x) = 1/(cos(x·A(x)²) - sin(x·A(x)²)). A201990