The Number

213906

Two Hundred and Thirteen Thousand Nine Hundred and Six

In Base 21 Unovigesimal Is

1221021

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

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

Nearby Numbers

Positive, nonzero integers within three units

213903
1220i21
Two Hundred and Thirteen Thousand Nine Hundred and Three in Base 21 Unovigesimal
213904
1220j21
Two Hundred and Thirteen Thousand Nine Hundred and Four in Base 21 Unovigesimal
213905
1220k21
Two Hundred and Thirteen Thousand Nine Hundred and Five in Base 21 Unovigesimal
213907
1221121
Two Hundred and Thirteen Thousand Nine Hundred and Seven in Base 21 Unovigesimal
213908
1221221
Two Hundred and Thirteen Thousand Nine Hundred and Eight in Base 21 Unovigesimal
213909
1221321
Two Hundred and Thirteen Thousand Nine Hundred and Nine in Base 21 Unovigesimal

Scientific Notation

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

2.13906e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j1k000j1k21

The reciprocal of 213906 in Base 21 Unovigesimal.

Palindrome?

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

The number 1221021 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 thirteen thousand nine hundred and six is a composite number with 32 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 thirteen thousand nine hundred and six 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 two hundred and thirteen thousand nine hundred and six has the following 5 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
463
11121
Four Hundred and Sixty-Three in Base 21 Unovigesimal

Prime Factorization

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

2211 · 3211 · 7211 · b211 · 111211 = 1221021

Base Conversions

The number two hundred and thirteen thousand nine hundred and six in 35 different bases