Properties of the Number 90643

Ninety Thousand Six Hundred Forty-Three

Basics

Value: 90642 → 90643 → 90644

Parity: odd

Prime: No

Previous Prime: 90641

Next Prime: 90647

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 23 × 563

Divisors: 1, 7, 23, 161, 563, 3941, 12949, 90643

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001000010011

Octal: 261023

Duodecimal: 44557

Hexadecimal: 16213

Square: 8216153449

Square Root: 301.0697593581926

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)³ is smallest cube containing exactly n 7's. A48372

a(n) = (-1)ⁿ⁺¹*(3/4)*(9ⁿ-1)*B(2·n) where B(k) denotes the k-th Bernoulli number. A90643