Properties of the Number 69828

Sixty-Nine Thousand Eight Hundred Twenty-Eight

Basics

Value: 69827 → 69828 → 69829

Parity: even

Prime: No

Previous Prime: 69827

Next Prime: 69829

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 11 × 23 ²

Divisors: 1, 2, 3, 4, 6, 11, 12, 22, 23, 33

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000011000100

Octal: 210304

Duodecimal: 344B0

Hexadecimal: 110c4

Square: 4875949584

Square Root: 264.24988174074934

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)/4. A6011

a(n+3) = 2a(n+2) - 3a(n+1) + 2a(n); a(0) = 1, a(1) = 1, a(2) = 0. A105578

a(n) = ((prime(n))⁴-(prime(n))²)/4. A138420

Largest achievable determinant of a 4 X 4 matrix whose elements are 16 distinct nonnegative integers chosen from the range 0...n. A97694

Number of (w,x,y,z) with all terms in {0,...,n}, w even and·odd. A212766

Triangle of coefficients of polynomials used for g.f.s of columns of A067304. A67329

Number of 2-step self-avoiding walks on an n X n X n cube summed over all starting positions. A187163

Averages of twin prime pairs of A074378. A154563

Sum of positive integers k for k <= n and gcd(k,n) = gcd(k+1,n). A69828

Square of Riordan array (1, x·c(x)) where c(x) is the g.f. of A000108. A127631