Properties of the Number 9128

Nine Thousand One Hundred Twenty-Eight

Basics

Value: 9127 → 9128 → 9129

Parity: even

Prime: No

Previous Prime: 9127

Next Prime: 9133

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 7 × 163

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 163, 326

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10001110101000

Octal: 21650

Duodecimal: 5348

Hexadecimal: 23a8

Square: 83320384

Square Root: 95.5405672999695

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) = 6·n² + 2 for n > 0, a(0)=1. A5897

T(n,k) = Number of n X n 0..k arrays with row and column sums one greater than the previous row and column. A202864

a(n) = coefficient of xⁿ*yⁿ in ∏_n>=1 (1 - (xⁿ + yⁿ)). A322213

Even numbers n such that n² is an arithmetic number. A107924

a(n) is the smallest k > a(n-1) such that k² has no digit in common with a(n-1)². A30287

a(n) = n*(n+1)*(n+2)*(n²+7·n+32)/120. A51747

Numbers k such that digit sum of 3^k is a power of 3. A118872

Numerator sequence of the n-th convergent of the continued fraction 1/(1+2/(2+2/(3+2/(4+... A222468

Gaps of 8 in sequence A038593 (lower terms). A38655

Numerators of continued fraction convergents to sqrt(417). A41792