The Number

21864

Twenty-One Thousand Eight Hundred and Sixty-Four

In Base 11 Undecimal Is

1547711

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21861
1547411
Twenty-One Thousand Eight Hundred and Sixty-One in Base 11 Undecimal
21862
1547511
Twenty-One Thousand Eight Hundred and Sixty-Two in Base 11 Undecimal
21863
1547611
Twenty-One Thousand Eight Hundred and Sixty-Three in Base 11 Undecimal
21865
1547811
Twenty-One Thousand Eight Hundred and Sixty-Five in Base 11 Undecimal
21866
1547911
Twenty-One Thousand Eight Hundred and Sixty-Six in Base 11 Undecimal
21867
1547a11
Twenty-One Thousand Eight Hundred and Sixty-Seven in Base 11 Undecimal

Scientific Notation

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

2.1864e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000740321422555491811

The reciprocal of 21864 in Base 11 Undecimal.

Palindrome?

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

The number 1547711 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-four is a composite number with 16 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and sixty-four 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 twenty-one thousand eight hundred and sixty-four has the following 3 prime factors:

2
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
911
75911
Nine Hundred and Eleven in Base 11 Undecimal

Prime Factorization

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

2113 · 3111 · 759111 = 1547711

Base Conversions

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