The Number

215742

Two Hundred and Fifteen Thousand Seven Hundred and Forty-Two

In Base 21 Unovigesimal Is

1264921

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

For more familiar numbers: See Two Hundred and Fifteen Thousand Seven Hundred and Forty-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

215739
1264621
Two Hundred and Fifteen Thousand Seven Hundred and Thirty-Nine in Base 21 Unovigesimal
215740
1264721
Two Hundred and Fifteen Thousand Seven Hundred and Forty in Base 21 Unovigesimal
215741
1264821
Two Hundred and Fifteen Thousand Seven Hundred and Forty-One in Base 21 Unovigesimal
215743
1264a21
Two Hundred and Fifteen Thousand Seven Hundred and Forty-Three in Base 21 Unovigesimal
215744
1264b21
Two Hundred and Fifteen Thousand Seven Hundred and Forty-Four in Base 21 Unovigesimal
215745
1264c21
Two Hundred and Fifteen Thousand Seven Hundred and Forty-Five in Base 21 Unovigesimal

Scientific Notation

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

2.15742e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ijb74ja889cg21

The reciprocal of 215742 in Base 21 Unovigesimal.

Palindrome?

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

The number 1264921 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 fifteen thousand seven hundred and forty-two 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 fifteen thousand seven hundred and forty-two 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 fifteen thousand seven hundred and forty-two has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
41
1k21
Forty-One in Base 21 Unovigesimal
877
1kg21
Eight Hundred and Seventy-Seven 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 · 1k211 · 1kg211 = 1264921

Base Conversions

The number two hundred and fifteen thousand seven hundred and forty-two in 35 different bases