Properties of the Number 90881

Ninety Thousand Eight Hundred Eighty-One

Basics

Value: 90880 → 90881 → 90882

Parity: odd

Prime: No

Previous Prime: 90863

Next Prime: 90887

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 7 × 12983

Divisors: 1, 7, 12983, 90881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001100000001

Octal: 261401

Duodecimal: 44715

Hexadecimal: 16301

Square: 8259356161

Square Root: 301.46475747589466

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

T(n,k) = Number of n X k 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X (k+1) binary array having determinant equal to one. A227751

Number of n X 4 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 5 binary array having determinant equal to one. A227749

Number of n X 5 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 6 binary array having determinant equal to one. A227750

Suppose n=(p1^e1)(p2^e2)... where p1,p2,... are the prime numbers and e1,e2,... are nonnegative integers. Then a(n) = e1 + (e2)*4 + (e3)*16 + (e4)*64 + ... + (ek)*(4^k-1) + ... A90881