The Number

21861

Twenty-One Thousand Eight Hundred and Sixty-One

In Base 6 Senary Is

2451136

The numbers with a 6 subscript use Base 6 Senary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21858
2451106
Twenty-One Thousand Eight Hundred and Fifty-Eight in Base 6 Senary
21859
2451116
Twenty-One Thousand Eight Hundred and Fifty-Nine in Base 6 Senary
21860
2451126
Twenty-One Thousand Eight Hundred and Sixty in Base 6 Senary
21862
2451146
Twenty-One Thousand Eight Hundred and Sixty-Two in Base 6 Senary
21863
2451156
Twenty-One Thousand Eight Hundred and Sixty-Three in Base 6 Senary
21864
2451206
Twenty-One Thousand Eight Hundred and Sixty-Four in Base 6 Senary

Scientific Notation

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

2.1861e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000002044553435445152112256

The reciprocal of 21861 in Base 6 Senary.

Palindrome?

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

The number 2451136 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand eight hundred and sixty-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 6 Senary

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and sixty-one is a composite number with 12 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 twenty-one thousand eight hundred and sixty-one has the following 3 prime factors:

3
36
Three in Base 6 Senary
7
116
Seven in Base 6 Senary
347
13356
Three Hundred and Forty-Seven in Base 6 Senary

Prime Factorization

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

362 · 1161 · 133561 = 2451136

Base Conversions

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