The Number

209980

Two Hundred and Nine Thousand Nine Hundred and Eighty

In Base 21 Unovigesimal Is

11e3121

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

209977
11e2j21
Two Hundred and Nine Thousand Nine Hundred and Seventy-Seven in Base 21 Unovigesimal
209978
11e2k21
Two Hundred and Nine Thousand Nine Hundred and Seventy-Eight in Base 21 Unovigesimal
209979
11e3021
Two Hundred and Nine Thousand Nine Hundred and Seventy-Nine in Base 21 Unovigesimal
209981
11e3221
Two Hundred and Nine Thousand Nine Hundred and Eighty-One in Base 21 Unovigesimal
209982
11e3321
Two Hundred and Nine Thousand Nine Hundred and Eighty-Two in Base 21 Unovigesimal
209983
11e3421
Two Hundred and Nine Thousand Nine Hundred and Eighty-Three in Base 21 Unovigesimal

Scientific Notation

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

2.09980e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j99903jk37bj21

The reciprocal of 209980 in Base 21 Unovigesimal.

Palindrome?

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

The number 11e3121 is not a palindrome.

Not A Prime Number

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

Two hundred and nine thousand nine hundred and eighty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and nine thousand nine hundred and eighty 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 two hundred and nine thousand nine hundred and eighty has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
10499
12gk21
Ten Thousand Four Hundred and Ninety-Nine in Base 21 Unovigesimal

Prime Factorization

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

2212 · 5211 · 12gk211 = 11e3121

Base Conversions

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