Properties of the Number 9021

Nine Thousand Twenty-One

Basics

Value: 9020 → 9021 → 9022

Parity: odd

Prime: No

Previous Prime: 9013

Next Prime: 9029

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 31 × 97

Divisors: 1, 3, 31, 93, 97, 291, 3007, 9021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100111101

Octal: 21475

Duodecimal: 5279

Hexadecimal: 233d

Square: 81378441

Square Root: 94.9789450352024

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 integer partitions of n with no adjacent parts having quotient > 2. A342094

a(n) = (11·n² - 11·n + 2)/2. A69125

Number of integer partitions of n whose median part is the smallest. A361860

Sum of largest parts (counted with multiplicity) of all partitions of n into odd parts. A92310

Number of binary arrangements without adjacent 1's on n X n torus connected ne-sw n-s nw-se. A67959

Number of permutations of length n which avoid the patterns 321, 2143, 3124; or avoid the patterns 132, 2314, 4312, etc. A116731

Start with 1013 and repeatedly reverse the digits and add 2 to get the next term. A120214

First trisection of A061037 (Balmer line series of the hydrogen atom). A142590

a(n) = (4·n+1)*(4·n+5). A3185

Number of squares on infinite half chessboard at <=n knight moves from a fixed point on the diagonal. A98499