Properties of the Number 90911

Ninety Thousand Nine Hundred Eleven

Basics

Value: 90910 → 90911 → 90912

Parity: odd

Prime: Yes

Previous Prime: 90907

Next Prime: 90917

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 90911

Divisors: 1, 90911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001100011111

Octal: 261437

Duodecimal: 4473B

Hexadecimal: 1631f

Square: 8264809921

Square Root: 301.51451043026105

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 having only {0, 1, 9} as digits. A199329

Primes of the form k² + k + 9. A27758

Integers n of the form 8k+7 that are sum of distinct squares of the form m, m+1, m+2, m+4, where m == 1 (mod 4). A243578

Numbers k such that k*(k+3) gives the concatenation of two numbers m and m+4. A116316

Second term of weak prime sextet: p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3). A54829

Numbers with easy multiplication table - the first 9 multiples of these numbers can be derived by either incrementing or decrementing the corresponding digits from the previous multiple. A359925

Convolution of Lucas numbers and A000201. A23621

Smallest n-digit squarefree number whose internal as well as external digits form a squarefree number greater than 1; or 0 if no such number exists. A77379

a(n+1) is the least positive integer k such that (1) k is a one-digit number or the concatenation of two or more consecutive numbers; (2) |k-a(n)| is prime; and (3) |k-a(n)| is not the absolute difference of two previous consecutive members of the sequence. A90911