The Number

16821

Sixteen Thousand Eight Hundred and Twenty-One

In Base 7 Septenary Is

1000207

The numbers with a 7 subscript use Base 7 Septenary notation.

For more familiar numbers: See Sixteen Thousand Eight Hundred and Twenty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

16818
1000147
Sixteen Thousand Eight Hundred and Eightteen in Base 7 Septenary
16819
1000157
Sixteen Thousand Eight Hundred and Nineteen in Base 7 Septenary
16820
1000167
Sixteen Thousand Eight Hundred and Twenty in Base 7 Septenary
16822
1000217
Sixteen Thousand Eight Hundred and Twenty-Two in Base 7 Septenary
16823
1000227
Sixteen Thousand Eight Hundred and Twenty-Three in Base 7 Septenary
16824
1000237
Sixteen Thousand Eight Hundred and Twenty-Four in Base 7 Septenary

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.6821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000066650003665600216647

The reciprocal of 16821 in Base 7 Septenary.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 1000207 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Sixteen thousand eight hundred and twenty-one is a composite number with 16 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Sixteen thousand eight hundred and twenty-one is a composite number with 16 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number sixteen thousand eight hundred and twenty-one has the following 3 prime factors:

3
37
Three in Base 7 Septenary
7
107
Seven in Base 7 Septenary
89
1557
Eighty-Nine in Base 7 Septenary

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

373 · 1071 · 15571 = 1000207

Base Conversions

The number sixteen thousand eight hundred and twenty-one in 35 different bases