Properties of the Number 64047

Sixty-Four Thousand Forty-Seven

Basics

Value: 64046 → 64047 → 64048

Parity: odd

Prime: No

Previous Prime: 64037

Next Prime: 64063

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 37 × 577

Divisors: 1, 3, 37, 111, 577, 1731, 21349, 64047

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111101000101111

Octal: 175057

Duodecimal: 31093

Hexadecimal: fa2f

Square: 4102018209

Square Root: 253.07508767162366

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

a(n) = ∑_k=0..n A047848(k, n-k). A47857

Number of partitions of n into exactly 5 different parts with distinct multiplicities. A212116

Number of 0..6 arrays of length n with each element differing from at least one neighbor by something other than 1, starting with 0. A221540

Number of 0..n arrays of length 7 with each element differing from at least one neighbor by something other than 1, starting with 0. A221545

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = A014306. A24477

T(n,k) = Number of 0..k arrays of length n with each element differing from at least one neighbor by something other than 1, starting with 0. A221542

Number of numbers only appearing once in 1-to-n multiplication table. A64047

Number of (n+1)X8 binary arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace. A185767