The Number

216801

Two Hundred and Sixteen Thousand Eight Hundred and One

In Base 21 Unovigesimal Is

128ci21

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

For more familiar numbers: See Two Hundred and Sixteen Thousand Eight Hundred and One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

216798
128cf21
Two Hundred and Sixteen Thousand Seven Hundred and Ninety-Eight in Base 21 Unovigesimal
216799
128cg21
Two Hundred and Sixteen Thousand Seven Hundred and Ninety-Nine in Base 21 Unovigesimal
216800
128ch21
Two Hundred and Sixteen Thousand Eight Hundred in Base 21 Unovigesimal
216802
128cj21
Two Hundred and Sixteen Thousand Eight Hundred and Two in Base 21 Unovigesimal
216803
128ck21
Two Hundred and Sixteen Thousand Eight Hundred and Three in Base 21 Unovigesimal
216804
128d021
Two Hundred and Sixteen Thousand Eight Hundred and Four in Base 21 Unovigesimal

Scientific Notation

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

2.16801e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ihcbi9ad8h4b21

The reciprocal of 216801 in Base 21 Unovigesimal.

Palindrome?

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

The number 128ci21 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 sixteen thousand eight hundred and one is a composite number with 24 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 sixteen thousand eight hundred and one is a composite number with 24 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 sixteen thousand eight hundred and one has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal
109
5421
One Hundred and 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

3212 · d211 · h211 · 54211 = 128ci21

Base Conversions

The number two hundred and sixteen thousand eight hundred and one in 35 different bases