Properties of the Number -228826

Two Hundred Twenty-Eight Thousand Eight Hundred Twenty-Six

Basics

Value: -228827 → -228826 → -228825

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 13 ² × 677

Divisors: 1, 2, 13, 26, 169, 338, 677, 1354, 8801, 17602

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110111110111011010

Octal: -676732

Duodecimal: -B050A

Hexadecimal: -37dda

Square: 52361338276

Square Root: 478.3576068173266

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) = n²*(n² + 1)/2. A37270

T(n,k)=Number of 0..2 arrays of length n+2·k-1 with sum less than 2·k in any length 2k subsequence (=less than 50% duty cycle). A212729

T(n,k)=Number of length n+3 0..k arrays with no consecutive four elements summing to more than 2·k. A241964

a(n) = sum of the first n coefficients of (1+x+x²)ⁿ. A55217

a(n) = sum of numbers from 1 to π(n), where π(n) = A007955(n). A184390

Triangular numbers with only even digits. A117978

Triangular numbers composed of digits {2,6,8}. A119174

Number of 0..2 arrays of length n+11 with sum less than 12 in any length 12 subsequence (=less than 50% duty cycle). A212727

Number of 0..2 arrays of length 2·n with sum less than 2·n in any length 2n subsequence (=less than 50% duty cycle). A212730

Number of length n+3 0..6 arrays with no consecutive four elements summing to more than 2·6. A241962