Properties of the Number 6825

Six Thousand Eight Hundred Twenty-Five

Basics

Value: 6824 → 6825 → 6826

Parity: odd

Prime: No

Previous Prime: 6823

Next Prime: 6827

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ² × 7 × 13

Divisors: 1, 3, 5, 7, 13, 15, 21, 25, 35, 39

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1101010101001

Octal: 15251

Duodecimal: 3B49

Hexadecimal: 1aa9

Square: 46580625

Square Root: 82.61355820929153

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

Odd abundant numbers (odd numbers m whose sum of divisors exceeds 2m). A5231

Odd primitive abundant numbers. A6038

Number of integer partitions of n whose parts do not have the same mean as median. A359894

Triangle T(n,k) of associated Stirling numbers of second kind, n >= 2, 1 <= k <= floor(n/2). A8299

Sum of 10 nonzero 8th powers. A3388

Triangle of Ward numbers T(n,k) read by rows. A134991

Expansion of f(x, -x⁴) / φ(-x²) in powers of·where f(, ) and φ() are Ramanujan θ functions. A122135

Number of integer partitions of n whose weak run-sums cover an initial interval of nonnegative integers. A353863

Numbers k such that 2^k - k² is prime. A72180

a(n) = n*(n+1)*(n+2)²/6. A4320