The Number

216931

Two Hundred and Sixteen Thousand Nine Hundred and Thirty-One

In Base 21 Unovigesimal Is

128j121

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

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

Nearby Numbers

Positive, nonzero integers within three units

216928
128ij21
Two Hundred and Sixteen Thousand Nine Hundred and Twenty-Eight in Base 21 Unovigesimal
216929
128ik21
Two Hundred and Sixteen Thousand Nine Hundred and Twenty-Nine in Base 21 Unovigesimal
216930
128j021
Two Hundred and Sixteen Thousand Nine Hundred and Thirty in Base 21 Unovigesimal
216932
128j221
Two Hundred and Sixteen Thousand Nine Hundred and Thirty-Two in Base 21 Unovigesimal
216933
128j321
Two Hundred and Sixteen Thousand Nine Hundred and Thirty-Three in Base 21 Unovigesimal
216934
128j421
Two Hundred and Sixteen Thousand Nine Hundred and Thirty-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.

2.16931e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ih7c6jjdh75721

The reciprocal of 216931 in Base 21 Unovigesimal.

Palindrome?

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

The number 128j121 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 nine hundred and thirty-one is a composite number with 16 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 nine hundred and thirty-one 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 two hundred and sixteen thousand nine hundred and thirty-one has the following 4 prime factors:

11
b21
Eleven in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
37
1g21
Thirty-Seven in Base 21 Unovigesimal
41
1k21
Forty-One in Base 21 Unovigesimal

Prime Factorization

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

b211 · d211 · 1g211 · 1k211 = 128j121

Base Conversions

The number two hundred and sixteen thousand nine hundred and thirty-one in 35 different bases