Properties of the Number 64944

Sixty-Four Thousand Nine Hundred Forty-Four

Basics

Value: 64943 → 64944 → 64945

Parity: even

Prime: No

Previous Prime: 64937

Next Prime: 64951

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 11 × 41

Divisors: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110110110000

Octal: 176660

Duodecimal: 31700

Hexadecimal: fdb0

Square: 4217723136

Square Root: 254.8411269791436

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

Number of compositions of n that are neither weakly increasing nor weakly decreasing. A332834

Base 3 digital convolution sequence. A33640

Number of reduced 3 X 3 magilatin squares with largest entry n. A174018

Number of (w,x,y,z) with all terms in {1,...,n} and w>2x and y<=3z. A212517

Sum of the 2nd smallest parts of all the partitions of n (2nd smallest part is defined to be 0 when the partition does not have at least 2 distinct parts). A265248

a(n) = floor(bell(2n)/bell(n)²), bell = A000110. A241906

a(n) = ∑_{i∣n, j∣n, j >= i} j. A64944