The Number

21978

Twenty-One Thousand Nine Hundred and Seventy-Eight

In Base 3 Ternary Is

10100110003

The numbers with a 3 subscript use Base 3 Ternary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21975
10100102203
Twenty-One Thousand Nine Hundred and Seventy-Five in Base 3 Ternary
21976
10100102213
Twenty-One Thousand Nine Hundred and Seventy-Six in Base 3 Ternary
21977
10100102223
Twenty-One Thousand Nine Hundred and Seventy-Seven in Base 3 Ternary
21979
10100110013
Twenty-One Thousand Nine Hundred and Seventy-Nine in Base 3 Ternary
21980
10100110023
Twenty-One Thousand Nine Hundred and Eighty in Base 3 Ternary
21981
10100110103
Twenty-One Thousand Nine Hundred and Eighty-One in Base 3 Ternary

Scientific Notation

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

2.1978e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000002200112121221122021121002100120223

The reciprocal of 21978 in Base 3 Ternary.

Palindrome?

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

The number 10100110003 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 nine hundred and seventy-eight is a composite number with 32 total factors (including 1 and itself).   See primes in Base 3 Ternary

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and seventy-eight is a composite number with 32 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 nine hundred and seventy-eight has the following 4 prime factors:

2
23
Two in Base 3 Ternary
3
103
Three in Base 3 Ternary
11
1023
Eleven in Base 3 Ternary
37
11013
Thirty-Seven in Base 3 Ternary

Prime Factorization

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

231 · 1033 · 10231 · 110131 = 10100110003

Base Conversions

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