The Number

21289

Twenty-One Thousand Two Hundred and Eighty-Nine

In Base 9 Nonary Is

321749

The numbers with a 9 subscript use Base 9 Nonary notation.

For more familiar numbers: See Twenty-One Thousand Two Hundred and Eighty-Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21286
321719
Twenty-One Thousand Two Hundred and Eighty-Six in Base 9 Nonary
21287
321729
Twenty-One Thousand Two Hundred and Eighty-Seven in Base 9 Nonary
21288
321739
Twenty-One Thousand Two Hundred and Eighty-Eight in Base 9 Nonary
21290
321759
Twenty-One Thousand Two Hundred and Ninety in Base 9 Nonary
21291
321769
Twenty-One Thousand Two Hundred and Ninety-One in Base 9 Nonary
21292
321779
Twenty-One Thousand Two Hundred and Ninety-Two in Base 9 Nonary

Scientific Notation

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

2.1289e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000268601337756163159

The reciprocal of 21289 in Base 9 Nonary.

Palindrome?

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

The number 321749 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 two hundred and eighty-nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Twenty-one thousand two hundred and eighty-nine is a composite number with 4 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 two hundred and eighty-nine has the following 2 prime factors:

61
679
Sixty-One in Base 9 Nonary
349
4279
Three Hundred and Forty-Nine in Base 9 Nonary

Prime Factorization

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

6791 · 42791 = 321749

Base Conversions

The number twenty-one thousand two hundred and eighty-nine in 35 different bases