Properties of the Number 90644

Ninety Thousand Six Hundred Forty-Four

Basics

Value: 90643 → 90644 → 90645

Parity: even

Prime: No

Previous Prime: 90641

Next Prime: 90647

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 17 × 31 × 43

Divisors: 1, 2, 4, 17, 31, 34, 43, 62, 68, 86

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001000010100

Octal: 261024

Duodecimal: 44558

Hexadecimal: 16214

Square: 8216334736

Square Root: 301.0714200982883

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 (ordered partitions) of n into powers of 2. A23359

Number of close American football games: number of ways for the game to end after n points have been scored and never be separated by more than one score after each play. A300998

Number of compositions (ordered partitions) of n into pentanacci numbers 1,2,4,8,16,31, ... (A001591). A357455

a(n) = 49·n² + n. A173141

Number of compositions (ordered partitions) of n into two or more powers of 2. A357534

a(n)=(-1)ⁿ⁺¹*(5/4)*(25ⁿ-1)*B(2n) where B(k) denotes the k-th Bernoulli number. A90644